This forces a specific JVM toolchain version. Fixes the following error:
Could not determine the dependencies of task ':unifiedpush_android:compileReleaseKotlin'.
> Cannot find a Java installation on your machine matching this tasks requirements: {languageVersion=8, vendor=any, implementation=vendor-specific} for LINUX on x86_64.
> No locally installed toolchains match and toolchain download repositories have not been configured.
This forces a specific JVM toolchain version. Fixes the following error: