Bump Fedora and Alpine versions in CI

What remains are only supported releases.

Author: dfandrich

.cirrus.yml

@@ -103,8 +103,8 @@ linux_musl_task:
     memory: 320M
     cpu: 1
     matrix:
-      - image: alpine:3.21
-      - image: alpine:3.18
+      - image: alpine:3.22
+      - image: alpine:3.19
 
   env:
     # Set to 10 instead of 1 to avoid problems when new commits are submitted

.github/workflows/ci.yml

@@ -284,7 +284,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        osver: [40, 41, 42]
+        osver: [41, 42, 43]
         build:
           - cc: gcc
             gtk: 3