chore: 🔥 remove files not needed in non-template code (#114)

# Description

This PR removes files that are not needed in the non-template project.
I also replaced `release-package.yml` with `release-project.yml`.

This PR needs a quick review. Just make sure I'm not deleting something
we need 😅

## Checklist

- [x] Added or updated tests
- [x] Updated documentation
- [ ] Ran `just run-all` -- this fails at this point

Author: martonvago

.github/_project-dependabot.yml

@@ -0,0 +1,21 @@
+name: Release project
+
+on:
+  push:
+    branches:
+      - main
+
+# Limit token permissions for security
+permissions: read-all
+
+jobs:
+  release:
+    # This job outputs env variables `previous_version` and `current_version`.
+    # Only give permissions for this job.
+    permissions:
+      contents: write
+    uses: seedcase-project/.github/.github/workflows/reusable-release-project.yml@main
+    with:
+      app-id: ${{ vars.UPDATE_VERSION_APP_ID }}
+    secrets:
+      update-version-gh-token: ${{ secrets.UPDATE_VERSION_TOKEN }}