Update Documenter requirement to 1.16.1 in /docs in the all-julia-packages group across 1 directory

[dependabot]

Updates the requirements on Documenter to permit the latest version.
Updates Documenter to 1.16.1

Release notes

Sourced from Documenter's releases.

v1.16.1

The changes are documented in the CHANGELOG.md file.

Diff since v1.16.0

Changelog

Sourced from Documenter's changelog.

Version [v1.16.1] - 2025-11-21

Fixed

• The -g is now passed to curl when checking links, to disable globbing, which could cause undesirable behavior when checking links containing characters like for example [, {, & or ?. (#2839, #2842)
• Fixed insufficient paragraph spacing in HTML output for @docs blocks. ([#2845, #2847])
• Don't expand details admonition by default. ([#2846, #2847])
• Removed superfluous vertical space at end of @docs blocks. (#2849)

Version [v1.16.0] - 2025-11-14

Added

• Added option treat_markdown_warnings_as_error which throws an error when encountering a markdown/interpolation warning (#2792, #2751)
• Footnotes can now be previewed by hovering over the link. (#2080)
• The version selector now attempts to stay on the same page when switching between documentation versions. If the page doesn't exist in the target version, it falls back to the version homepage. (#2801)
• Allow named @eval blocks: such a block shares its execution context with all other @eval, @example, @repl and @setup blocks on the same page which use the same name. (#2074, #2812)

Changed

• Page category is removed from the search index and now everything is in section category. (#2762, #2413)
• Changed the docstring block accordions from a custom implementation to HTML details+summary tag. (#2772, #2773)
• Improved the search tokenizer and custom trimmer to improve search results. (#1457, #2114, #2744)
• Improved several warning/error messages to (more accurately) report the location (filename, line range) in which the warning/error originated. (#2426, #2752, #2793, #2803, #2809)
• Warn/error if jldoctest starts with an empty line; or lacks empty line between two REPL prompts. (#2031, #2083, #2679, #2808)
• The forcepush=true option to deploydocs now uses --force-with-lease instead of --force. (#2817)
• Improved the generation of anchors for admonitions in HTML output to be more stable and e.g. not change due to changes of the internal representation across different Julia versions. (#2710)

Fixed

• Modules for @example environments are now generated by eval'ing an expression, rather than invoking the Module constructor, which is not recommended. (#2683)

• Fix handling of expandfirst entries containing slashes as path separators on Windows. (#1725, #2804)

• Changed the header crossref step to eagerly fail when encountering a non-unique header slug. (#2668, #2787)

  This is potentially breaking and may cause some documentation builds to fail. Those previously passed but generated incorrect cross-references. You can fix this by ensuring that you have distinct headers across your markdown pages, or by using the @id syntax to give the headers unique slugs.

• Changed CSS for the navigation "breadcrumbs" at the top of each page to avoid an issue where code blocks in there were missing spacing around them. (#1614, #2813)

• Commit status for pull request previews publishing in GitHub Actions for out-of-repo deployment now works correctly. (#2814, #2816)

• Fix assertions resp. errors being raised in @example, @eval, @repl blocks that are empty or contain code with syntax errors. (#2206, #2731, #2827)

Version [v1.15.0] - 2025-10-22

Changed

• Created a warning for when the search index size is too big (500Kib). (#2423, #2753)
• In the HTML output, the search modal can now be navigated using up and down keys. (#2761)

Other

... (truncated)

Commits

• 55b500f Set version to 1.16.1 (#2848)
• 56c72d8 Guide users to use workspaces when setting up Documenter (#2830)
• a8b1479 Removed superfluous vertical space at end of @docs blocks (#2849)
• a397e12 Fix spacing in @docs blocks; don't expand details admonition by default (...
• 050ce55 Pass -g option to curl in linkchecker (#2842)
• 26d0051 Build Julia HTML manual in regression tests (#2724)
• a9af48e Set version to 1.16.0 (#2841)
• a0665d5 Update changelog (#2840)
• 1aecd99 Restore cd inside @eval, and add a test for it (#2837)
• 4b6ff9d Add syntax highlight tags to docs/src/man/other-formats.md (#2838)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore <dependency name> major version will close this group update PR and stop Dependabot creating any more for the specific dependency's major version (unless you unignore this specific dependency's major version or upgrade to it yourself)
• @dependabot ignore <dependency name> minor version will close this group update PR and stop Dependabot creating any more for the specific dependency's minor version (unless you unignore this specific dependency's minor version or upgrade to it yourself)
• @dependabot ignore <dependency name> will close this group update PR and stop Dependabot creating any more for the specific dependency (unless you unignore this specific dependency or upgrade to it yourself)
• @dependabot unignore <dependency name> will remove all of the ignore conditions of the specified dependency
• @dependabot unignore <dependency name> <ignore condition> will remove the ignore condition of the specified dependency and ignore conditions