Enable Gradle configuration cache

https://github.com/gradle/actions/blob/v5.0.0/docs/setup-gradle.md#saving-configuration-cache-data

Author: MattiasBuelens

.github/workflows/ci.yml

@@ -25,5 +25,6 @@ jobs:
           cache: gradle
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v5
+        cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTION_KEY }}
       - name: Assemble
-        run: ./gradlew assembleRelease
+        run: ./gradlew assembleRelease --configuration-cache

.github/workflows/docs.yml

@@ -36,8 +36,9 @@ jobs:
           cache: gradle
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v5
+        cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTION_KEY }}
       - name: Build API documentation with Dokka
-        run: ./gradlew ui:dokkaGeneratePublicationHtml
+        run: ./gradlew ui:dokkaGeneratePublicationHtml --configuration-cache
       - name: Build with Jekyll
         uses: actions/jekyll-build-pages@v1
         with:

.github/workflows/publish.yml

@@ -42,8 +42,9 @@ jobs:
           cache: gradle
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v5
+        cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTION_KEY }}
       - name: Publish package
-        run: ./gradlew publish
+        run: ./gradlew publish --configuration-cache
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           REPOSILITE_USERNAME: ${{ secrets.REPOSILITE_USERNAME }}