wip: ci: Build in Kubernetes

ci/podTemplate.yaml

@@ -3,7 +3,13 @@ spec:
     runAsUser: 1000
   containers:
   - name: zola
-    image: git.pyrocufflink.net/containerimages/zola
+    image: ghcr.io/getzola/zola:v0.16.0
+    # Literally the only commands in the *zola* container image are
+    # `zola`, `openssl`, and `c_rehash`.
+    command:
+    - openssl
+    stdin: true
+    tty: true
   - name: python
     image: docker.io/python:3.10
     command: