Advance current development environment to Fedora 40

Signed-off-by: Bryan Gurney <[email protected]>

Author: bgurney-rh

.github/workflows/main.yml

@@ -27,7 +27,7 @@ jobs:
           - dependencies: python3-coverage python3-into-dbus-python
             task: PYTHONPATH=./src make -f Makefile coverage
     runs-on: ubuntu-latest
-    container: fedora:39  # CURRENT DEVELOPMENT ENVIRONMENT
+    container: fedora:40  # CURRENT DEVELOPMENT ENVIRONMENT
     steps:
       - uses: actions/checkout@v4
       - name: Install dependencies