ci: fix build_and_push and release workflows

[niladrih]

Release workflow changes:

1. Fixes chart generation
2. Fixes image tag
3. Adds branch name to build info

Build and Push workflow changes:

1. Adds checkout during image build
2. Adds branch name to build info

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 37.35%. Comparing base (cab53c4) to head (152b0f4).
Report is 6 commits behind head on develop.

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Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #213      +/-   ##
===========================================
- Coverage    37.91%   37.35%   -0.57%     
===========================================
  Files           36        1      -35     
  Lines         3373      779    -2594     
===========================================
- Hits          1279      291     -988     
+ Misses        2012      479    -1533     
+ Partials        82        9      -73     

Flag	Coverage Δ
integrationtests	37.35% <ø> (?)

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