ci: verify MSRV in GitHub Actions

.github/workflows/check-and-build-and-test.yml

@@ -189,3 +189,41 @@ jobs:
 
       - name: Test
         run: cargo nextest run --target ${{ matrix.supporteds.target }}
+
+  msrv:
+    strategy:
+      matrix:
+        crate_directory:
+          - ./core
+          - ./cli-clap
+          - ./gui-eframe
+          - ./tui-ratatui
+          - ./multibinary
+
+        supporteds:
+          - runner: macos-latest
+            target: aarch64-apple-darwin
+          
+          - runner: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+          
+          - runner: windows-latest
+            target: x86_64-pc-windows-msvc
+    name: Verify MSRV of ${{ matrix.crate_directory }} for ${{ matrix.supporteds.target }} (on ${{ matrix.supporteds.runner }})
+    runs-on: ${{ matrix.supporteds.runner }}
+    timeout-minutes: 2
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install stable Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - uses: Swatinem/rust-cache@v2
+        with:
+          shared-key: ${{ matrix.supporteds.target }}-latest-variable
+          cache-on-failure: "true"
+      
+      - name: Verify MSRV (minimum supported Rust version)
+        run: cargo msrv verify
+        working-directory: ${{ strategy.crate_directory }}