Migrate anvil contribution merging to KSP (#902) #1040

Job	Run time
Validate gradle wrapper / Validate gradle wrapper	7s
Generate build number	7s
Update gradle cache	16m 33s
Build Internal AAB and APK WearOS	11m 50s
Create baseline profile / Upload baseline profile file	16m 38s
Upload Wear OS to Play Store	0s
Build Internal AAB and APK (gh_gms)	19m 59s
Build Internal AAB and APK (gh_nogms)	18m 59s
Build Internal AAB and APK (googleplay)	20m 46s
Upload to Github Releases	25s
Upload to Play Store	0s
	1h 45m 24s

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