add cargo-semver-check to CI

Author: jlizen

.github/workflows/rust.yml

@@ -45,3 +45,14 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
       - name: Run cargo clippy
         run: cargo clippy --all-targets -- --deny warnings
+
+  semver:
+    name: semver
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check semver
+        uses: obi1kenobi/cargo-semver-checks-action@v2
+        with:
+          uses: dtolnay/rust-toolchain@stable
+          release-type: minor