ci: replace actions/checkout with manual git clone for node-less container

.gitea/workflows/build-and-push.yml

@@ -23,7 +23,13 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        run: |
+          apk add --no-cache git
+          GITEA_HOST="${{ gitea.server_url }}"
+          GITEA_HOST="${GITEA_HOST#https://}"
+          GITEA_HOST="${GITEA_HOST#http://}"
+          git clone "https://oauth2:${{ secrets.GITEA_TOKEN }}@${GITEA_HOST}/${{ gitea.repository }}.git" .
+          git checkout ${{ gitea.sha }}
 
       - name: Log in to Gitea registry
         run: |

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>