GitHub actions automations

[antonpirker]

• Add Github action to comment on issues if a fix for that issue has been released
• Add Github action to automatically add new/reopened PRs and issues to the "Python SDK" project.
• Label PRs that have as base branch "potel-base" with "Project: POTel"

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.88%. Comparing base (a7c2d70) to head (7e56a1e).

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3815      +/-   ##
==========================================
- Coverage   79.89%   78.88%   -1.02%     
==========================================
  Files         137      137              
  Lines       15385    15385              
  Branches     2611     2611              
==========================================
- Hits        12292    12136     -156     
- Misses       2222     2384     +162     
+ Partials      871      865       -6     

see 21 files with indirect coverage changes