Update centrally managed files

.github/workflows/check.yaml

@@ -136,15 +136,6 @@ jobs:
           TEST_JUJU3: "1"  # https://github.com/openstack-charmers/zaza/pull/653
           TEST_JUJU_CHANNEL: ${{ matrix.juju-channel }}
 
-      - name: Determine system architecture
-        run: echo "SYSTEM_ARCH=$(uname -m)" >> $GITHUB_ENV
-
-      - name: Upload the tested charms
-        uses: actions/upload-artifact@v4
-        with:
-          name: built_charms_${{ env.SYSTEM_ARCH }}
-          path: ./*.charm
-
       # Save output for debugging
 
       - name: Generate debugging information

.github/workflows/release.yaml

@@ -18,26 +18,26 @@ jobs:
 
   release:
     needs: check
-    runs-on: ubuntu-24.04
+    runs-on: ${{ matrix.runs-on }}
+    strategy:
+      fail-fast: false
+      matrix:
+        runs-on: [[ubuntu-22.04]]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
           submodules: true
 
-      - name: Download the tested charms
-        uses: actions/download-artifact@v4
-        with:
-          pattern: built_charms_*
-          merge-multiple: true
-
-      - name: List the names of the tested charms
-        run: |
-          echo "CHARM_NAMES=$(ls *.charm | paste -sd ,)" | tee -a "$GITHUB_ENV"
+      - name: Initialize lxd  # This should dropped once it's implemented on charming-actions itself. https://github.com/canonical/charming-actions/issues/140
+        # revision is latest main at time of writing; using because it contains a fix to https://github.com/canonical/setup-lxd/issues/19
+        uses: canonical/setup-lxd@2aa6f7caf7d1484298a64192f7f63a6684e648a4
 
       - name: Pack and upload to charmhub
-        uses: canonical/charming-actions/upload-charm@2.7.0
+        uses: canonical/charming-actions/upload-charm@2.6.2
         with:
+          charmcraft-channel: "3.x/stable"
           credentials: "${{ secrets.CHARMHUB_TOKEN }}"
           github-token: "${{ secrets.GITHUB_TOKEN }}"
-          built-charm-path: "${{ env.CHARM_NAMES }}"
+          # Ensure the charm is built in an isolated environment and on the correct base in an lxd container.
+          destructive-mode: false

.gitignore

@@ -17,6 +17,7 @@ reports/
 **/report/
 htmlcov/
 .mypy_cache
+.unit-state.db
 
 # python virtual environments (for local dev)
 .venv