[kots] Fix s3 secret typo in gitpod installer job

`kind: secret` is miswritten in `secret: secret`, causing installer render to fail

Author: shaoye

install/kots/manifests/gitpod-installer-job.yaml

@@ -190,7 +190,7 @@ spec:
                   echo "Gitpod: configuring storage for S3"
 
                   yq e -i ".objectStorage.s3.endpoint = \"{{repl ConfigOption "store_s3_endpoint" }}\"" "${CONFIG_FILE}"
-                  yq e -i ".objectStorage.s3.credentials.secret = \"secret\"" "${CONFIG_FILE}"
+                  yq e -i ".objectStorage.s3.credentials.kind = \"secret\"" "${CONFIG_FILE}"
                   yq e -i ".objectStorage.s3.credentials.name = \"storage-s3\"" "${CONFIG_FILE}"
                 fi
               fi