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 79.55%. Comparing base (da20623) to head (9d01b5a).

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3815      +/-   ##
==========================================
- Coverage   79.92%   79.55%   -0.38%     
==========================================
  Files         137      137              
  Lines       15421    15421              
  Branches     2614     2614              
==========================================
- Hits        12326    12268      -58     
- Misses       2225     2289      +64     
+ Partials      870      864       -6     

see 2 files with indirect coverage changes