try this

infrastructure/external-dns/cronjob.yaml

@@ -12,7 +12,7 @@ spec:
 
       template:
         spec:
-          containers:
+          initContainers:
             - name: git
               image: git
               command: ["git"]
@@ -23,7 +23,7 @@ spec:
               volumeMounts:
                 - name: octodns-config
                   mountPath: /etc/octodns
-
+          containers:
             - name: octodns
               image: octodns
               env:
@@ -45,11 +45,12 @@ spec:
 
               command: ["/bin/sh", "-c"]
               args:
-                - pip install -r /etc/octodns/requirements.txt
-                - "&&"
-                - octodns-sync --config-file /etc/octodns/config.yaml
-                - "&&"
-                - echo "done"
+                - >-
+                  pip install -r /etc/octodns/requirements.txt
+                  &&
+                  octodns-sync --config-file /etc/octodns/config.yaml
+                  &&
+                  echo "done"
                 #- --doit
               volumeMounts:
                 - name: octodns-config