Split version update script

[pdabelf5]

Proposed changes

• Escape release & helm version regexes to avoid . being treated as part of the regex.
• Make updating release notes a seperate script in preparation for further enhancements to the process.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d6f5fe3) 52.28% compared to head (826d13b) 52.28%.
Report is 4 commits behind head on main.

❗ Current head 826d13b differs from pull request most recent head 57b6ae4. Consider uploading reports for the commit 57b6ae4 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4961   +/-   ##
=======================================
  Coverage   52.28%   52.28%           
=======================================
  Files          60       60           
  Lines       17501    17501           
=======================================
  Hits         9151     9151           
  Misses       8020     8020           
  Partials      330      330           

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