Feature/GitHub actions (#60)

#4 Includes changes related with publishing on Jitpack.io
```

allprojects {
          repositories {
	          ...
	          maven { url 'https://jitpack.io' }
          }
}
```
```
dependencies {
	  implementation 'com.github.AppcentMobile:helium-java-sdk:1.0.0-SNAPSHOT'
}
```

Co-authored-by: Eren <[email protected]>

Author: erenalpaslan

.github/workflows/maven-publish.yml

@@ -6,9 +6,7 @@ on:
 jobs:
   publish:
     runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
+    permissions: write-all
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
@@ -18,4 +16,14 @@ jobs:
       - name: Publish package
         run: mvn --batch-mode deploy
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Create Release ✅
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref_name }}
+          release_name: ${{ github.ref_name }}
+          draft: false
+          prerelease: false

jitpack.yml

@@ -0,0 +1,2 @@
+jdk:
+  - openjdk8