Improve release workflow safety: update README only after JitPack success

- Move README version update to happen after JitPack confirms build success
- Prevents README showing versions that don't exist on JitPack
- If JitPack fails, README keeps previous working version
- README update is now a separate commit after release tag
- Ensures users never see broken dependency instructions

Author: wassertim

.github/workflows/release.yml

@@ -82,17 +82,14 @@ jobs:
         sed -i "s/<dynamodb-toolkit.version>.*<\/dynamodb-toolkit.version>/<dynamodb-toolkit.version>$NEW_VERSION<\/dynamodb-toolkit.version>/" pom.xml
         sed -i "s/<dynamodb-toolkit.version>.*<\/dynamodb-toolkit.version>/<dynamodb-toolkit.version>$NEW_VERSION<\/dynamodb-toolkit.version>/" integration-tests/pom.xml
 
-        # Update version in README.md
-        sed -i "s/<version>v[^<]*<\/version>/<version>v$NEW_VERSION<\/version>/" README.md
-
     - name: Build and verify
       run: |
         mvn clean install
         cd integration-tests && mvn clean compile
 
     - name: Commit and tag release
       run: |
-        git add pom.xml integration-tests/pom.xml README.md
+        git add pom.xml integration-tests/pom.xml
         git commit -m "Release version $NEW_VERSION"
         git tag -a "v$NEW_VERSION" -m "Release version $NEW_VERSION"
 
@@ -186,6 +183,15 @@ jobs:
               echo "✅ JitPack build completed successfully!"
               echo "📦 Artifact available at: https://jitpack.io/#wassertim/dynamodb-toolkit/v$NEW_VERSION"
               echo "🔗 Build log: https://jitpack.io/com/github/wassertim/dynamodb-toolkit/v$NEW_VERSION/build.log"
+
+              # Now that JitPack succeeded, update README with new version
+              echo "📝 Updating README.md with confirmed working version..."
+              sed -i "s/<version>v[^<]*<\/version>/<version>v$NEW_VERSION<\/version>/" README.md
+              git add README.md
+              git commit -m "Update README.md to version $NEW_VERSION after JitPack success"
+              git push origin main
+
+              echo "🎉 Release $NEW_VERSION completed successfully!"
               exit 0
               ;;
             "error"|"Error")