Use build_remote_single.py instead of build_remote.py

.github/workflows/snap_packaging_jobs.yml

@@ -12,9 +12,6 @@ on:
 permissions:
   contents: read
 
-env:
-  SNAP_BUILD_TIMEOUT: ${{ inputs.snapBuildTimeout }}
-
 jobs:
   gha_build_snap:
     name: Build certbot ${{ matrix.build-for }}
@@ -114,7 +111,7 @@ jobs:
     - uses: actions/setup-python@v6.2.0
       with:
         python-version: '3.12'
-    - name: Build snaps
+    - name: Build snap
       env:
         LAUNCHPAD_CREDS: "${{ secrets.LAUNCHPAD_CREDENTIALS }}"
       run: |-
@@ -122,7 +119,7 @@ jobs:
         git config --global user.name "41898282+github-actions[bot]@users.noreply.github.com"
         mkdir -p ~/.local/share/snapcraft/
         echo "$LAUNCHPAD_CREDS" > ~/.local/share/snapcraft/launchpad-credentials
-        python3 tools/snap/build_remote.py ${{ matrix.target }} --archs "$SNAP_ARCH" --timeout "$SNAP_BUILD_TIMEOUT"
+        python3 tools/snap/build_remote_single.py ${{ matrix.target }} --arch "$SNAP_ARCH"
     - name: Flatten snaps layout
       run: |-
         mv *.snap ${{ runner.temp }} || true