chore(ci): improvements to gha workflows #55

Job	Run time
Checks / Gradle Wrapper Validate	10s
Checks / Dependency Graph	2m 32s
Checks / CodeQL Analysis (java)	5m 55s
Build / Build Guava (JRE)	1m 52s
Build / Build Guava (Android)	3m 46s
Tests / JDK 8 JRE (ubuntu-latest)	13m 9s
Tests / JDK 8 Android (ubuntu-latest)	11m 11s
Tests / JDK 11 JRE (ubuntu-latest)	17m 57s
Tests / JDK 11 Android (ubuntu-latest)	16m 15s
Tests / JDK 17 JRE (ubuntu-latest)	12m 39s
Tests / JDK 17 Android (ubuntu-latest)	11m 10s
Tests / JDK 21 JRE (ubuntu-latest)	12m 27s
Tests / JDK 21 Android (ubuntu-latest)	10m 38s
Tests / JDK 21 JRE (windows-latest)	11m 37s
Tests / JDK 21 Android (windows-latest)	12m 33s
Build / SLSA Provenance	0s
Build / Generate Docs	0s
Build / Publish Snapshot	0s
	2h 23m 51s

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