ci: Add workflow for running codespell

.github/workflows/codespell.yml

@@ -0,0 +1,25 @@
+# Codespell configuration is within pyproject.toml
+---
+name: Codespell
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  codespell:
+    name: Check for spelling errors
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Annotate locations with typos
+        uses: codespell-project/codespell-problem-matcher@v1
+      - name: Codespell
+        uses: codespell-project/actions-codespell@v2

pyproject.toml

@@ -85,6 +85,13 @@ exclude_lines = [
   "if TYPE_CHECKING:",
 ]
 
+[tool.codespell]
+# Ref: https://github.com/codespell-project/codespell#using-a-config-file
+skip = '.git*'
+check-hidden = true
+# ignore-regex = ''
+# ignore-words-list = ''
+
 [tool.ruff]
 line-length = 88
 indent-width = 4
@@ -103,7 +110,6 @@ ignore = [
   "PLR6301",
   "S",
   "TID252",
-
   # Allow access to protected members in tests
   "SLF001",
-]
+]