Zurich region added

[JV0812]

Purpose of this pull request

This pull request is to add Zurich (Switzerland) region to our docs.

Select the type of change

• Minor Changes - Typos, formatting, slight revisions
• Update Content - Revisions, updating sections
• New Content - New features, sections, pages, tutorials
• Site and Tools - .clabot, version updates, maintenance, dependencies, new packages for the site (Docusaurus, Gatsby, React, etc.)

Ticket (if applicable)

Update api documentation - Switzerland (Zurich)

[jpipkin1]

@JV0812, I added the following API articles with PR #5970. You'll need to add the Zurich location to these too:

• https://www.sumologic.com/help/docs/api/parsers-library-management/
• https://www.sumologic.com/help/docs/api/schema-base-management/
• https://www.sumologic.com/help/docs/api/source-template-management/

[jpipkin1]

Approved, @JV0812, contingent on your addressing my comments.