Add msrv check

Author: MidasLamb

.github/workflows/generic.yml

@@ -83,3 +83,14 @@ jobs:
         uses: actions/checkout@v4
       - name: Check semver
         uses: obi1kenobi/cargo-semver-checks-action@v2
+
+  msvr:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-binstall
+      - run: cargo binstall --version 0.18.4 --no-confirm cargo-msrv
+      - run: cargo msrv verify

Cargo.toml

@@ -7,6 +7,7 @@ license = "MIT OR Apache-2.0"
 description = "A simple type for non empty Strings, similar to NonZeroUsize and friends."
 repository = "https://github.com/MidasLamb/non-empty-string"
 keywords = ["nonemptystring", "string", "str", "non-empty", "nonempty"]
+rust-version = "1.81.0"
 
 [package.metadata."docs.rs"]
 all-features = true