Add semver check to CI (#1793)

Author: utpilla

.github/workflows/ci.yml

@@ -138,6 +138,19 @@ jobs:
         env:
           CARGO_INCREMENTAL: '0'
           RUSTDOCFLAGS: -Dwarnings
+  semver: # This job uses the latest published crate as baseline for comparison.
+    runs-on: ubuntu-latest
+    name: semver
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: true
+    - name: Install stable
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        components: rustfmt
+    - name: cargo-semver-checks
+      uses: obi1kenobi/cargo-semver-checks-action@v2.3
   coverage:
     continue-on-error: true
     runs-on: ubuntu-latest