build(nightly): compile appkit dependency with workflow

.github/workflows/nightly-builds.yml

@@ -10,6 +10,28 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+    - name: Checkout Appkit Repo
+      uses: actions/checkout@v3
+      with:
+        repository: grishka/appkit
+        
+    - name: set up JDK 17
+      uses: actions/setup-java@v3
+      with:
+        java-version: '17'
+        distribution: 'corretto'
+        cache: gradle
+        
+    - name: Comment out signing config in appkits gradle file
+      run: |
+        sed -i 's/sign publishing\.publications\.release/\/\/ sign publishing.publications.release/' appkit/maven-push.gradle
+
+    - name: Grant execute permission for gradlew for Appkit
+      run: chmod +x gradlew
+    
+    - name: Compile appkit
+      run: ./gradlew publishToMavenLocal
+      
     - uses: actions/checkout@v3
     - name: set up JDK 17
       uses: actions/setup-java@v3