add: workflow for publishing to maven central

Author: devi-krishna-kv

.github/workflows/publish.yml

@@ -47,11 +47,14 @@ jobs:
       - name: Add signing password to gradle.proeprties
         run: echo "signing.password=${{ secrets.OSS_SIGNING_PASSWORD }}" >> gradle.properties
 
-      - name: Copy secret file content to a new file
-        run: printf "${{ secrets.SECRET_FILE_CONTENT }}" >> secring.gpg
+      - name: Decode and set up GPG secring file
+        env:
+          GPG_SECRET_RING: ${{ secrets.SECRET_FILE_CONTENT }}
+        run: |
+          echo "$GPG_SECRET_RING" | base64 --decode > ~/.gnupg/secring.gpg
 
       - name: Add secret file loc to gradle.properties
-        run: echo "signing.secretKeyRingFile=secring.gpg"
+        run: echo "signing.secretKeyRingFile=~/.gnupg/secring.gpg"
 
 
       - name: Echo gradle.properties