CI: Add semver checks to CI deploy job

This will fail creating a new github release, if the semver
action fails.
This would have caught mozilla#841.

.github/workflows/deploy.yml

@@ -12,22 +12,27 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+      - uses: actions/checkout@v3
 
-    - name: Install stable
-      uses: actions-rs/toolchain@v1
-      with:
-        toolchain: stable
+      - name: Install stable
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
 
-    - name: Build cbindgen
-      run: |
-        cargo build --release
+      - name: semver
+        uses: obi1kenobi/cargo-semver-checks-action@v2
+        with:
+          rust-toolchain: stable
 
-    - name: Strip cbindgen
-      run: |
-        strip target/release/cbindgen
+      - name: Build cbindgen
+        run: |
+          cargo build --release
+
+      - name: Strip cbindgen
+        run: |
+          strip target/release/cbindgen
 
-    - name: Handle release data and files
+      - name: Handle release data and files
       id: tagName
       run: |
         VERSION=$(cargo pkgid | cut -d# -f2 | cut -d: -f2)