build(release-please): Add missing PR title prefixes to the workflow

[mpro7]

Pull Request Checklist

Task Description/Number

Issue Number: NO-TICKET

This PR just adds recently added perf prefix to release creation workflow and slightly updates PR template.

PR Type

• chore: maintenance tasks (no production code change)
• docs: documentation changes (no production code change)
• feat: represents a new feature
• fix: represents bug fixes
• perf: performance improvements
• refactor: represents production code refactoring
• test: all about tests: adding, refactoring tests (no production code change)

Basic Requirements for bug fixes and features

• Tests for the changes have been added
• Docs have been added / updated

Does this PR introduce a breaking change?

• Yes

Does this PR change client-test-data?

• Yes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3e95d71) 11.68% compared to head (2b47e7b) 88.04%.
Report is 3 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2918       +/-   ##
===========================================
+ Coverage   11.68%   88.04%   +76.36%     
===========================================
  Files         251      251               
  Lines       23065    23068        +3     
===========================================
+ Hits         2695    20311    +17616     
+ Misses      20370     2757    -17613     

Files	Coverage Δ
...bapi/src/main/scala/dsp/valueobjects/Project.scala	97.59% <100.00%> (+11.17%)	⬆️
.../slice/admin/domain/service/KnoraProjectRepo.scala	100.00% <100.00%> (ø)
...slice/admin/domain/service/ProjectADMService.scala	97.77% <100.00%> (+86.41%)	⬆️
...ce/admin/domain/service/ProjectExportService.scala	63.23% <100.00%> (+63.23%)	⬆️
...lice/admin/repo/service/KnoraProjectRepoLive.scala	96.96% <100.00%> (+96.96%)	⬆️

... and 199 files with indirect coverage changes

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[mpro7]

I just moved perf to Enhancements section instead Maintenance, which IMO makes more sense.