fix: cherry pick conflicts

[github-actions]

Cherry pick from the original PR:

• fix: cherry pick conflicts #2213

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⚠️ Conflicts during cherry-pick:

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PR Submission Checklist for internal contributors

• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like
  • answers the question: If merged, this PR will: ... ³

• The PR Description

  • is free of optional paragraphs and you have filled the relevant parts to the best of your ability

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What's new in this PR?

Issues

When there was more than one merge conflict automatic cherry pick failed

Solutions

• Use awk to set the Output Record Separator (ORS) to
  , which echo -e in bash can interpret as a newline
• Pipe the output to sed to replace the last
  with
  , to don't end up with an extra newline at the end.
• Move PR_BODY to script to handle properly variable formatting

[github-actions]

Unit Test Results

   470 files  +  86     470 suites  +86   2m 36s ⏱️ + 2m 18s
2 622 tests +601  2 518 ✔️ +539  104 💤 +62  0 ❌ ±0 

Results for commit be2dec4. ± Comparison against base commit 8e2301b.

♻️ This comment has been updated with latest results.

[codecov-commenter]

Codecov Report

Merging #2214 (be2dec4) into develop (8e2301b) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop    #2214      +/-   ##
=============================================
- Coverage      58.02%   58.01%   -0.01%     
  Complexity        21       21              
=============================================
  Files           1070     1070              
  Lines          40701    40701              
  Branches        3766     3766              
=============================================
- Hits           23615    23612       -3     
- Misses         15468    15470       +2     
- Partials        1618     1619       +1     

see 2 files with indirect coverage changes

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[datadog-wireapp]

Datadog Report

Branch report: fix/cherry-pick-conflicts-cherry-pick
Commit report: bebd0bb

✅ kalium-jvm: 0 Failed, 0 New Flaky, 2518 Passed, 104 Skipped, 7m 6.04s Wall Time