chore(ci): improvements to gha workflows #52

Job	Run time
Checks / Gradle Wrapper Validate	10s
Checks / Dependency Graph	2m 32s
Build / Build Guava (JRE)	2m 27s
Checks / CodeQL Analysis (java)	5m 22s
Build / Build Guava (Android)	1m 22s
Tests / JDK 8 JRE (ubuntu-latest)	13m 9s
Tests / JDK 8 Android (ubuntu-latest)	11m 12s
Tests / JDK 11 JRE (ubuntu-latest)	17m 51s
Tests / JDK 11 Android (ubuntu-latest)	16m 0s
Tests / JDK 17 JRE (ubuntu-latest)	13m 3s
Tests / JDK 17 Android (ubuntu-latest)	10m 53s
Tests / JDK 21 JRE (ubuntu-latest)	12m 21s
Tests / JDK 21 Android (ubuntu-latest)	10m 28s
Tests / JDK 17 JRE (windows-latest)	12m 56s
Tests / JDK 17 Android (windows-latest)	9m 45s
Tests / JDK 21 JRE (windows-latest)	11m 19s
Tests / JDK 21 Android (windows-latest)	9m 36s
Build / SLSA Provenance	0s
Build / Generate Docs	0s
Build / Publish Snapshot	0s
	2h 40m 26s

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