feat: update pipelines

- remove buildah (now in image)
- add fedora42/fedora43/fedora44 pipelines
- use el9 for fedora build
- build prerequisites for fedora rpmbuilder tooling

rpms/unkin-ca-certificates/metadata.yaml

@@ -3,11 +3,20 @@ arch: amd64
 builds:
   - image: git.unkin.net/unkin/almalinux8-rpmbuilder:latest
     release: '1'
-    repository: [almalinux/el8]
+    repository:
+      - almalinux/el8
     version: 2025.07.13
   - image: git.unkin.net/unkin/almalinux9-rpmbuilder:latest
     release: '1'
-    repository: [almalinux/el9]
+    repository:
+      - almalinux/el9
+    version: 2025.07.13
+  - image: git.unkin.net/unkin/almalinux9-rpmbuilder:latest
+    release: '1'
+    repository:
+      - fedora/42
+      - fedora/43
+      - fedora/44
     version: 2025.07.13
 description: ca-certificates for the unkin site
 github: unknown/unkin-ca-certificates