ci: tolerate already-published crate on tag re-push

Author: affromero

.github/workflows/release.yml

@@ -107,4 +107,4 @@ jobs:
       - uses: Swatinem/rust-cache@v2
 
       - name: Publish
-        run: cargo publish --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        run: cargo publish --token ${{ secrets.CARGO_REGISTRY_TOKEN }} || echo "Already published (skipping)"