Use better wording for release pipeline and steps

[sapk]

It was strange that the pipeline for the last commit was named release-master (even for https://drone.gitea.io/go-gitea/gitea/22615).

This PR simply refactor some naming to be more explicit.

I don't think this need to be backported but it will fixed it for later.

[codecov-io]

Codecov Report

Merging #10701 into master will decrease coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #10701      +/-   ##
==========================================
- Coverage   43.58%   43.56%   -0.03%     
==========================================
  Files         589      589              
  Lines       82565    82662      +97     
==========================================
+ Hits        35990    36011      +21     
- Misses      42113    42177      +64     
- Partials     4462     4474      +12     

Impacted Files	Coverage Δ
modules/indexer/stats/db.go	40.62% <0.00%> (-18.75%)	⬇️
modules/indexer/stats/queue.go	62.50% <0.00%> (-18.75%)	⬇️
modules/lfs/content_store.go	45.33% <0.00%> (-7.80%)	⬇️
modules/lfs/locks.go	45.91% <0.00%> (-4.69%)	⬇️
modules/git/utils.go	65.67% <0.00%> (-4.48%)	⬇️
modules/lfs/server.go	40.35% <0.00%> (-4.25%)	⬇️
modules/log/event.go	64.61% <0.00%> (-1.03%)	⬇️
modules/git/repo.go	46.78% <0.00%> (-0.92%)	⬇️
services/pull/pull.go	34.70% <0.00%> (-0.30%)	⬇️
cmd/serv.go	2.80% <0.00%> (-0.04%)	⬇️
... and 9 more

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[lunny]

make L-G-T-M work.