Update spec tests based on 2025-10-08 cql-tests source

[cmoesel]

Update the specification tests based on the latest source at https://github.com/cqframework/cql-tests. This required skipping a set of new tests based on an overload of Expand that takes a single interval as the first argument.

NEW: This now includes a new check-skip-list script that will run through the skip-list.txt file and try enabling each tests again to see if it still fails. If it no longer fails, it will remove it from the skip list. Run it using npm run check-skip-list.

This PR now also removes some spec tests from the skip list that are now passing.

Submitter:

• This pull request describes why these changes were made
• Code diff has been done and been reviewed (it does not contain: additional white space, not applicable code changes, debug statements, etc.)
• Tests are included and test edge cases
• Tests have been run locally and pass
• Code coverage has not gone down and all code touched or added is covered.
• [n/a] Code passes lint and prettier (hint: use npm run test:plus to run tests, lint, and prettier)
• [n/a] All dependent libraries are appropriately updated or have a corresponding PR related to this change
• [n/a] cql4browsers.js built with npm run build:browserify if source changed.

Reviewer:

Name:

• Code is maintainable and reusable, reuses existing code and infrastructure where appropriate, and accomplishes the task’s purpose
• The tests appropriately test the new code, including edge cases
• You have tried to break the code

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.58%. Comparing base (51df256) to head (4b7363d).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #353   +/-   ##
=======================================
  Coverage   87.58%   87.58%           
=======================================
  Files          52       52           
  Lines        4607     4607           
  Branches     1297     1297           
=======================================
  Hits         4035     4035           
  Misses        359      359           
  Partials      213      213           

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[hossenlopp]

Looks good. Nice script for checking the skipped list.