Remove unknown file warning from read_annotations()

[scheidec]

• removed md5sum checksum validation and version dictionary checks
  resulting in warnings of unknown annotations files
• warning was often misleading, as menu annotations file updates are
  not always in alignment with timing of CRAN releases
• removed getAnnoVer() function and ver_dict object
• removed tools::md5sum import dependency
• bump to development version

[Copilot]

Pull request overview

Removes version/checksum-based validation from read_annotations() to eliminate misleading “unknown annotations file” warnings, and updates docs/tests/versioning accordingly.

Changes:

• Simplified read_annotations() to always read the “Annotations” sheet with a fixed skip = 8L, removing getAnnoVer(), ver_dict, and tools::md5sum usage.
• Updated documentation and examples to reflect the new expectations for annotation files.
• Adjusted test coverage and bumped the development version.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
R/read-annotations.R	Removes version/checksum logic and simplifies read/validation behavior.
tests/testthat/test-read-annotations.R	Drops tests for removed version/checksum features; adds column presence checks and updates error expectation.
man/read_annotations.Rd	Updates parameter description and example filename to match new assumptions.
NEWS.md	Documents the removal of restrictive validation and dependency cleanup.
NAMESPACE	Removes tools::md5sum import.
DESCRIPTION	Bumps package version to a dev version.
README.md	Updates the version badge to match the dev version.

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