PENG-2364 update the release workflow to use charmcraft from channel 3.x/stable and update the charmcraft.yaml by removing the support for ubuntu 24.04

Author: matheushent

.github/workflows/release.yaml

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-name: Release to latest/edge
+name: Release to Charmhub
 
 on:
   workflow_dispatch:
@@ -50,7 +50,7 @@ jobs:
       - name: Install dependencies
         run: |
             python3 -m pip install tox==4.18.0
-            snap install charmcraft --channel 2.x/stable
+            snap install charmcraft --channel 3.x/stable
 
       - name: Upload charm to charmhub
         uses: canonical/charming-actions/[email protected]

charmcraft.yaml

@@ -1,18 +1,15 @@
-type: charm
-bases:
-- build-on:
-  - name: ubuntu
-    channel: "22.04"
-  run-on:
-  - name: ubuntu
-    channel: "20.04"
-    architectures: [amd64]
-  - name: ubuntu
-    channel: "22.04"
-    architectures: [amd64]
-  - name: ubuntu
-    channel: "24.04"
-    architectures: [amd64]
-parts:
-  charm:
-    charm-python-packages: [setuptools]
+type: charm 
+bases: 
+- build-on: 
+  - name: ubuntu 
+    channel: "22.04" 
+  run-on: 
+  - name: ubuntu 
+    channel: "20.04" 
+    architectures: [amd64] 
+  - name: ubuntu 
+    channel: "22.04" 
+    architectures: [amd64] 
+parts: 
+ charm: 
+   charm-python-packages: [setuptools]