[ci] Try to run checkout with the alpine image

.forgejo/workflows/test-bootstrap.yaml

@@ -1,13 +1,6 @@
 ---
 on: [push]
 jobs:
-  clone:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - run: |
-          pwd
-          ls -l
   doom:
     runs-on: docker
     container:
@@ -19,6 +12,7 @@ jobs:
           apk add --update git emacs-nox chezmoi nodejs bash
         with:
           entrypoint: "/bin/sh"
+      - uses: actions/checkout@v3
       - run: |
           mkdir -p "${HOME}/.local/share" "${HOME}/.config/chezmoi"
           pwd