chore: Add .github templates

[WilcoFiers]

Add .github templates

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• [x] Follows the commit message policy, appropriate for next version
• [x] Has documentation updated, a DU ticket, or requires no documentation change
• [x] Includes new tests, or was unnecessary
• [x] Code is reviewed for security by: @wilcofiers

[marcysutton]

@WilcoFiers the build previously failed after 10m of npm installing, so I added the caching stuff @stephenmathieson wrote for axe-core and it passed.

[WilcoFiers]

@marcysutton can you approve and merge?