Harmonize parallel jobs

Author: hannesa2

.github/workflows/android-build.yml

@@ -5,7 +5,17 @@ on:
     types: [opened, synchronize, reopened]
 
 jobs:
-  build:
+  Build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: Build with Gradle
+        run: ./gradlew build
+  Espresso:
     runs-on: macOS-latest
     steps:
       - uses: actions/checkout@v2