Use github tag for release version (fix)

Author: pboos

.github/workflows/publish.yml

@@ -27,6 +27,13 @@ jobs:
         uses: gradle/gradle-build-action@a8f75513eafdebd8141bd1cd4e30fcd194af8dfa # v2.12.0
         with:
           arguments: sourcesJar javadocJar
+      - name: Get tag
+        shell: bash
+        id: get_tag
+        run: |
+          TAG=${GITHUB_REF#refs/tags/}
+          echo "Github tag: $TAG"
+          echo "gh_tag=${TAG#v}" >> "$GITHUB_OUTPUT"
       - name: Publish to MavenCentral
         uses: gradle/gradle-build-action@a8f75513eafdebd8141bd1cd4e30fcd194af8dfa # v2.12.0
         with:
@@ -38,3 +45,4 @@ jobs:
           SIGNING_KEY_ID: ${{ secrets.SIGNING_KEY_ID }}
           SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
           SIGNING_KEY: ${{ secrets.SIGNING_KEY }}
+          GH_TAG: "${{ steps.get_tag.outputs.gh_tag }}"

build.gradle

@@ -13,7 +13,7 @@ allprojects {
     group = 'com.getyourguide.openapi.validation'
     description = 'OpenAPI Validation library'
     // Use version from GitHub tag if provided, otherwise use default version
-    version = project.hasProperty('gh_tag') ? project.property('gh_tag').replaceFirst('^v', '') : '0-SNAPSHOT'
+    version = System.getenv('GH_TAG') ? System.getenv('GH_TAG').replaceFirst('^v', '') : '0-SNAPSHOT'
 
     java {
         toolchain {