ci: use more tmpfs and noatime for faster CI

.forgejo/workflows-composite/setup-env/action.yaml

@@ -1,3 +1,5 @@
+# TODO:
+# - [ ] prepare a forgejo ci image with the necessary tools and forgejo user
 runs:
   using: "composite"
   steps:
@@ -7,6 +9,7 @@ runs:
         # ignore if the user already exists (like with the playwright image)
         adduser --quiet --comment forgejo --disabled-password forgejo || true
         chown -R forgejo:forgejo .
+
     - uses: https://codeberg.org/fnetx/setup-cache-go@b2214eaf6fb44c7e8512c0f462a2c3ec31f86a73
       with:
         username: forgejo