chore: add skip deploy to maven central option

Author: ewaostrowska

.github/workflows/release-master.yml

@@ -3,6 +3,15 @@ name: Release  Master
 on:
   workflow_dispatch:
     branches: ["master"]
+    inputs:
+      skip_deploy:
+        description: 'Skip maven deploy (use if artifacts already published to Central)'
+        required: false
+        default: 'false'
+        type: choice
+        options:
+          - 'false'
+          - 'true'
 
 jobs:
   build:
@@ -60,7 +69,7 @@ jobs:
         git config --global hub.protocol https
         git remote set-url origin https://\${{ secrets.GITHUB_TOKEN }}:x-oauth-basic@github.com/swagger-api/swagger-codegen.git
     - name:  Run maven deploy/release
-      if: env.RELEASE_OK == 'yes'
+      if: env.RELEASE_OK == 'yes' && github.event.inputs.skip_deploy != 'true'
       run: |
         mvn --no-transfer-progress -B -Prelease deploy
     - name: Set up QEMU