Update Gradle to 8.1 and AGP to v8.0 (#329)

* Update AGP to 8.0.0.

* Set JAVA_HOME to JDK17

* Update lint version.

* Use right JDK for dependency analysis, replace deprecated env var.

* Upgrade to Gradle 8.1.

* Remove `@Supress(DSL_SCOPE_VIOLATION)` as it's no longer needed.

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/tests.yml

@@ -24,7 +24,15 @@ jobs:
       - name: ⏬ Checkout with LFS
         uses: actions/checkout@v3
         with:
+          # Ensure we are building the branch and not the branch after being merged on develop
+          # https://github.com/actions/checkout/issues/881
+          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.ref }}
           lfs: 'true'
+      - name: ☕️ Use JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '17'
       - name: Configure gradle
         uses: gradle/gradle-build-action@v2
         with: