ci: codespell: add spell checking CI job

Signed-off-by: Leonard Göhrs <[email protected]>

.codespellrc

@@ -0,0 +1,3 @@
+[codespell]
+skip = ./.git/*,./web/build/*,./web/node_modules/*,./web/package-lock.json,./target/*
+ignore-words-list = crate,ser

.github/workflows/codespell.yaml

@@ -0,0 +1,16 @@
+name: codespell
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  codespell:
+    name: codespell
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: python3 -m pip install codespell
+      - run: codespell