Add min versions check to CI

.github/workflows/ci.yml

@@ -80,6 +80,25 @@ jobs:
       - name: Check semver
         uses: obi1kenobi/cargo-semver-checks-action@v2
 
+  min-versions:
+    name: Minimal Dependency Versions
+    runs-on: ubuntu-latest
+    needs: [lints, docs]
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+
+      - name: Install nightly toolchain
+        uses: dtolnay/rust-toolchain@nightly
+
+      - name: Install cargo-hack
+        uses: taiki-e/install-action@cargo-hack
+      - name: Install cargo-minimal-versions
+        uses: taiki-e/install-action@cargo-minimal-versions
+
+      - name: Check with minimal versions
+        run: cargo minimal-versions check --workspace --ignore-private
+
   lints:
     name: Lints
     runs-on: ubuntu-latest
@@ -148,7 +167,7 @@ jobs:
     runs-on: ubuntu-latest
     environment: production
     if: github.event_name == 'release'
-    needs: [build, test, msrv, lints, docs, leaks, semver]
+    needs: [build, test, msrv, lints, docs, leaks, semver, min-versions]
     steps:
       - name: Checkout sources
         uses: actions/checkout@v3