Disable pull_request trigger for ci:test:deploy

[make-github-pseudonymous-again]

This is progress on:

• Reduce CI time taken by ci:build:compose #1110
• Use workflow_run trigger instead of ArcticLampyrid/action-wait-for-workflow #900

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.15%. Comparing base (34d9b8f) to head (0ae8d20).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1112      +/-   ##
==========================================
- Coverage   73.16%   73.15%   -0.01%     
==========================================
  Files         772      772              
  Lines       11915    11915              
  Branches     1455     1455              
==========================================
- Hits         8718     8717       -1     
- Misses       2696     2697       +1     
  Partials      501      501              

Flag	Coverage Δ
client	53.21% <ø> (+<0.01%)	⬆️
server	61.85% <ø> (-0.03%)	⬇️
test	77.78% <ø> (-0.02%)	⬇️
test-app	58.21% <ø> (-0.02%)	⬇️

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[make-github-pseudonymous-again]

It does not work since pull_request triggers are required for "required checks". See for instance:

• https://github.com/orgs/community/discussions/102764
• https://github.com/orgs/community/discussions/103114
• https://github.com/orgs/community/discussions/46757?sort=old#discussioncomment-4909336

This might be worked around via "required deployments":

Require deployments to succeed before merging
Choose which environments must be successfully deployed to before branches can be merged into a branch that matches this rule.

But at this point I think it would be simpler to just merge all dependent jobs into a single workflow, as suggested in:

• Reduce CI time taken by ci:build:compose #1110.