chore(deps): remove dependency on github.com/pkg/errors

[hazzik]

Description

Remove dependency on github.com/pkg/errors as it was archived

Checklist

• Code compiles correctly and linting passes locally
• For all code changes, an entry added to the CHANGELOG.md file describing and linking to
  this PR
• Tests added for new functionality, or regression tests for bug fixes added as applicable
• For public APIs, new features, etc., PR on docs repo
  staged and linked here

Instructions

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  syntax, leading with fix:, feat:, chore:, ci:, etc.
• The description should briefly explain what the PR is about. In the case of a bugfix, describe or
  link to the bug.
• In the checklist section, check the boxes in that are applicable, using [x] syntax.
  • If not applicable, remove the entire line. Only leave the box unchecked if you intend to come
    back and check the box later.
• Delete the Instructions line and everything below it, to indicate you have read and are
  following these instructions. 🙂

Thank you for your contribution to Badger!

[Copilot]

Pull Request Overview

This PR removes the dependency on github.com/pkg/errors and updates error creation and wrapping accordingly throughout the codebase. Key changes include replacing errors.Errorf and errors.Wrapf with fmt.Errorf and errors.New, and removing the import of github.com/pkg/errors.

Reviewed Changes

Copilot reviewed 20 out of 21 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
value.go	Replaced pkg/errors usage with built-in errors and fmt.Errorf
util.go	Removed pkg/errors import; minor update to error handling
txn.go	Updated error formatting and removed pkg/errors import
trie/trie.go	Updated error wrapping for ignore bytes parsing
table/table.go	Switched to using errors and fmt.Errorf instead of pkg/errors
table/builder.go	Removed pkg/errors import and updated corresponding error handling
stream_writer.go	Updated error wrapping in flatten and key order checks
publisher_test.go	Removed pkg/errors import in tests
options.go	Replaced pkg/errors usage with fmt.Errorf in compression parsing
memtable.go	Updated error message in file existence check
manifest.go	Removed pkg/errors import; updated error creation for magic/checksum errors
levels.go	Replaced pkg/errors usage with errors.New in table-filling error
db.go	Updated error messages and error wrapping across various checks
batch.go	Replaced pkg/errors usage with fmt.Errorf in batch flushing errors
badger/cmd/stream.go	Removed pkg/errors import; updated error creation for CLI validations
badger/cmd/read_bench.go	Removed pkg/errors import; updated error creation in test logic
badger/cmd/info.go	Removed pkg/errors import; updated error message formatting
badger/cmd/flatten.go	Removed pkg/errors import; updated error creation for compression checks
backup.go	Switched pkg/errors usage to fmt.Errorf for error wrapping in backup logic

Files not reviewed (1)

• go.mod: Language not supported

Comments suppressed due to low confidence (1)

db.go:154

• [nitpick] Consider using consistent capitalization for 'ValueThreshold' rather than 'Valuethreshold' in the error message.

return fmt.Errorf("Valuethreshold %d greater than max batch size of %d. Either "+