Update build.yml

fix git tag job condition

Author: SonOfSardaar

.github/workflows/build.yml

@@ -183,7 +183,7 @@ jobs:
   create-release-tag:
     runs-on: ubuntu-latest
     needs: [build, publish-nuget]
-    if: github.event_name == 'push' && github.ref_name == github.event.repository.default_branch
+    if: github.event.inputs.runPublish == 'true' && github.ref_name == github.event.repository.default_branch
     permissions:
       contents: write