Document the use of of the gradle init script for spotless with respect to the gradle configuration cache

Author: tunjid

.github/workflows/blueprints.yaml

@@ -39,6 +39,8 @@ jobs:
         run: ./gradlew assembleDebug compileDebugUnitTestKotlin
 
       - name: Spotless
+        # Spotless is not gradle configuration cache compliant. To allow the rest of the build
+        # comply, run spotless with a gradle init script and disable the cache.
         run: ./gradlew spotlessCheck --init-script gradle/init.gradle.kts --no-configuration-cache
 
       - name: Robolectric

gradle/init.gradle.kts

@@ -14,6 +14,10 @@
  *   limitations under the License.
  */
 
+// The init script is used to run Spotless in a gradle configuration cache compliant manner as
+// Spotless itself is not gradle configuration cache compliant.
+// Note that the init script needs to be run with the configuration cache turned off.
+
 val ktlintVersion = "0.44.0"
 
 initscript {