Increase JVM memory for gradle builds (#236)

Updates to increase amount of memory available during CI builds. I think
this will help with the intermittent `A failure occurred while executing
"com.android.build.gradle.tasks.PackageAndroidArtifact$IncrementalSplitterRunnable`
CI errors.

No user facing changes

.github/workflows/pr.yml

@@ -9,6 +9,7 @@ defaults:
 
 env:
   BUILD_DIRS_ARTIFACT: build-dirs
+  GRADLE_OPTS: "-Dorg.gradle.jvmargs='-Xmx4g -XX:MaxMetaspaceSize=512m'"
 
 jobs:
   pre-commit:
@@ -42,7 +43,7 @@ jobs:
       - name: Build app
         id: buildapp
         run: |
-          ./gradlew clean assembleDebug
+          ./gradlew clean assembleDebug --no-daemon
           apks=$(find app/build/outputs/apk -name '*.apk' -print0 | tr '\0' ',' | sed 's/,$//')
           echo "apks=$apks" >> "$GITHUB_OUTPUT"
       - name: Tar build dirs