cache .gradle

Author: gmuth

.github/workflows/build.yml

@@ -30,6 +30,9 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: '17'
+          cache: 'gradle'
+          cache-dependency-path: | # optional
+            .gradle/*
 
       # https://github.com/marketplace/actions/build-with-gradle
       #- name: Setup Gradle