Update release publishing flow (#9)

Adds the release after successful publish.
Also adds cargo semver checks.

Author: benbrandt

.github/workflows/publish.yml

@@ -16,8 +16,23 @@ jobs:
         uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c
         with:
           toolchain: nightly,stable
+      - name: Check semver
+        uses: obi1kenobi/cargo-semver-checks-action@5b298c9520f7096a4683c0bd981a7ac5a7e249ae
       - uses: rust-lang/crates-io-auth-action@e919bc7605cde86df457cf5b93c5e103838bd879
         id: auth
       - run: cargo publish
         env:
           CARGO_REGISTRY_TOKEN: ${{ steps.auth.outputs.token }}
+
+  release:
+    runs-on: ubuntu-latest
+    needs: [publish-rust]
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      - name: Create Release
+        id: create_release
+        uses: softprops/action-gh-release@6da8fa9354ddfdc4aeace5fc48d7f679b5214090
+        with:
+          draft: true