ci: fix cargo publish with --allow-dirty flag

The Cargo.lock can differ between local and CI environments due to
index updates. Using --allow-dirty ensures the publish succeeds.

Bumps to v0.2.8 since v0.2.7 failed to publish to crates.io.

Author: Finesssee

.github/workflows/release.yml

@@ -88,7 +88,10 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
 
+      - name: Cache cargo
+        uses: Swatinem/rust-cache@v2
+
       - name: Publish to crates.io
-        run: cargo publish
+        run: cargo publish --allow-dirty
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}