[stable10] Update .github/PULL_REQUEST_TEMPLATE.md with latest from master

[phil-davis]

Description

Apply changes from master to stabe10 for .github/PULL_REQUEST_TEMPLATE.md
Just so there are no diffs of .github folder between master and stable10

How Has This Been Tested?

CI

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Database schema changes (next release will require increase of minor version instead of patch)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:

[codecov]

Codecov Report

Merging #34831 into stable10 will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             stable10   #34831   +/-   ##
===========================================
  Coverage       64.22%   64.22%           
  Complexity      19895    19895           
===========================================
  Files            1277     1277           
  Lines           76244    76244           
  Branches         1292     1292           
===========================================
  Hits            48971    48971           
  Misses          26894    26894           
  Partials          379      379

Flag	Coverage Δ	Complexity Δ
#javascript	53.2% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	65.39% <ø> (ø)	19895 <ø> (ø)	⬇️

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