ci: Workaround multi-line if-condition github bug; cleanup.

Signed-off-by: Jason Volk <jason@zemos.net>

.github/workflows/publish.yml

@@ -45,12 +45,11 @@ on:
 jobs:
   containers:
     if: >
-      ${{
-        !failure() && !cancelled()
-        && inputs.machines
-        && inputs.docker_repo != ''
-        && github.ref == 'refs/heads/main'
-      }}
+      !failure() && !cancelled()
+      && inputs.machines
+      && inputs.docker_repo != ''
+      && github.ref == 'refs/heads/main'
+
     name: Publish containers
     runs-on: ${{matrix.machine}}
     permissions: write-all