CI: use checkout try to fix gbp

Author: missytake

.github/workflows/build-staging-deb.yml

@@ -1,4 +1,4 @@
-name: build
+name: staging
 
 on:
   pull-request:
@@ -7,7 +7,7 @@ on:
   workflow_dispatch:
 
 jobs:
-  build-amd64:
+  staging-amd64:
     runs-on: ubuntu-latest
     container: debian:12
     steps:
@@ -17,12 +17,11 @@ jobs:
           apt update
           apt install -y git-buildpackage build-essential debhelper-compat default-libmysqlclient-dev krb5-multidev libapparmor-dev libbz2-dev libcap-dev libdb-dev libexpat-dev libexttextcat-dev libicu-dev libldap2-dev liblua5.4-dev liblz4-dev liblzma-dev libpam0g-dev libpq-dev libsasl2-dev libsodium-dev libsqlite3-dev libssl-dev libstemmer-dev libsystemd-dev libwrap0-dev libzstd-dev pkg-config zlib1g-dev git libunwind-dev rsync
 
-      - name: clone repository
-        run: git clone https://github.com/chatmail/dovecot
+      - uses: actions/checkout@v4
 
       - name: build
         run: |
-          cd dovecot
+          rm -r .github
           DEB_BUILD_OPTIONS=nocheck gbp buildpackage --git-no-pristine-tar -us -uc
 
       - name: upload .deb files
@@ -32,7 +31,7 @@ jobs:
           chmod 600 "$HOME/.ssh/key"
           rsync -rILvh -e "ssh -i $HOME/.ssh/key -o StrictHostKeyChecking=no" $GITHUB_WORKSPACE/build-area/ "${{ secrets.USERNAME }}@download.delta.chat:/var/www/html/download/dovecot/"
 
-  build-arm:
+  staging-arm:
     runs-on: ubuntu-24.04-arm
     container: debian:12
     steps: