Add a GitHub Actions pass checking for typos

It is available as a convenient action:
https://github.com/crate-ci/typos/blob/master/docs/github-action.md

Author: linkmauve

.github/workflows/rust.yml

@@ -153,6 +153,17 @@ jobs:
       - name: Format (rustfmt)
         run: cargo fmt --all --check
 
+  typos:
+    name: Typos
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v5
+
+      - name: Check for typos
+        uses: crate-ci/typos@v1.38.1
+
   clippy:
     name: Lint
     runs-on: ubuntu-latest