Add msrv check to the ci

Author: morr0ne

.github/workflows/ci.yml

@@ -22,3 +22,18 @@ jobs:
 
       - name: Check clippy
         run: cargo clippy --all-targets --all-features
+
+  msrv:
+    name: MSRV check (1.85)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup MSRV rust
+        run: rustup toolchain install 1.85 --profile minimal
+
+      - name: Check build with MSRV
+        run: cargo +1.85 check --all-targets --all-features
+
+      - name: Check tests compile with MSRV
+        run: cargo +1.85 test --all-features --no-run