Improve psalm and changelog

[vjik]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌
Fixed issues

[what-the-diff]

PR Summary

• Master Branch Filter Addition
  Added a filter for the 'master' branch in the push event. This is in the GitHub workflow file named 'static.yml'. This filter will help to direct incoming updates specifically to the master branch.

• Increase in Software Version
  The software version was updated from '2.0.1' to '3.0.0' in the 'CHANGELOG.md' file. The increase in the version number represents significant improvements or changes in our software for better performance.

• Updates to Required Vimeo/Psalm Version
  The required Vimeo/Psalm software has been updated to version '^5.22'. This is seen in the 'composer.json' file, which means our software stays compatible with the latest version of this package for more efficient operation.

• Addition of Issue Handlers
  Two new issue handlers - 'MixedAssignment' and 'RiskyTruthyFalsyComparison', were added with a 'suppress' error level in the 'psalm.xml' file. These changes allow for further handling of potential problems, improving the overall reliability of the software.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (831a71b) 100.00% compared to head (0610ec1) 100.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##              master       #80   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        27        27           
===========================================
  Files              3         3           
  Lines            125       125           
===========================================
  Hits             125       125           

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