ci: fix sentry release version (#481)

.github/workflows/publish_npmjs.yaml

@@ -19,6 +19,10 @@ jobs:
       - run: npm publish --access public
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
+      - id: cleanVersion
+        run: |
+          version="${{ github.event.release.release.tag_name }}"
+          echo "::set-output name=value::${version/v}"
       - name: Create Sentry release
         uses: getsentry/action-release@v1
         env:
@@ -27,4 +31,4 @@ jobs:
           SENTRY_PROJECT: ${{ secrets.SENTRY_PROJECT }}
         with:
           sourcemaps: ./build/static/js
-          version: ${{ github.ref }}
+          version: ${{ steps.cleanVersion.outputs.value }}