Try bumping heap size of gradle and the kotlin daemon as a last resort

Author: jmartinesp

.github/workflows/tests-rust.yml

@@ -9,7 +9,7 @@ on:
 
 # Enrich gradle.properties for CI/CD
 env:
-  GRADLE_OPTS: -Dorg.gradle.jvmargs="-Xmx4g -Dfile.encoding=UTF-8 -XX:+HeapDumpOnOutOfMemoryError" -Dkotlin.daemon.jvm.options="-Xmx2560m" -Dkotlin.incremental=false
+  GRADLE_OPTS: -Dorg.gradle.jvmargs="-Xmx5g -Dfile.encoding=UTF-8 -XX:+HeapDumpOnOutOfMemoryError" -Dkotlin.daemon.jvm.options="-Xmx3g" -Dkotlin.incremental=false
   CI_GRADLE_ARG_PROPERTIES: --stacktrace -PpreDexEnable=false --max-workers 4 --no-daemon
 
 jobs: