chore: explicit labelling for tasks requiring podman

.gitea/workflows/images.yml

@@ -3,11 +3,11 @@ on:
   push:
     branches: [main]
     paths:
-      - 'images/**'
-      - '.gitea/workflows/images.yml'
+      - "images/**"
+      - ".gitea/workflows/images.yml"
   schedule:
     # Check for new act_runner releases daily at 06:00 UTC.
-    - cron: '0 6 * * *'
+    - cron: "0 6 * * *"
   workflow_dispatch:
 
 jobs:
@@ -50,7 +50,9 @@ jobs:
           fi
 
   build-base:
-    runs-on: fedora-43
+    runs-on:
+      - metal
+      - podman
     needs: check-act-runner
     if: >-
       github.event_name == 'push' ||
@@ -69,7 +71,9 @@ jobs:
           podman push git.lair.cafe/gongfoo/runner-fedora-43:latest
 
   build-rust:
-    runs-on: fedora-43
+    runs-on:
+      - metal
+      - podman
     needs: build-base
     steps:
       - uses: actions/checkout@v4