pre-commit: add go mod tidy

.github/workflows/prek.yml

@@ -20,5 +20,10 @@ jobs:
       - name: Add a flatpak that mutagen could support
         run: sudo flatpak install -y org.freedesktop.Platform/x86_64/24.08 app.zen_browser.zen
 
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
       - name: run pre-commit hooks
         uses: j178/prek-action@v1

.pre-commit-config.yaml

@@ -10,3 +10,11 @@ repos:
     hooks:
       - id: shellcheck
         args: [-e, SC2164, -e, SC2001, -e, SC2012, -e, SC2317]
+  - repo: local
+    hooks:
+      - id: go-mod-tidy
+        name: go mod tidy
+        entry: go mod tidy
+        language: system
+        files: (go\.mod|go\.sum|\.go)$
+        pass_filenames: false