fix: disable config readonly

on nc install & update

nextcloud/manifests/install-job.yml

@@ -10,6 +10,8 @@ spec:
       - command:
         - /install.sh
         env:
+        - name: CONFIG_READONLY
+          value: ""
         - name: VERSION
           value: ${NC_VERSION}
         - name: OBJECTSTORE_S3_KEY 

nextcloud/other-manifests/update-job.yml

@@ -17,6 +17,8 @@ spec:
           /usr/local/bin/php occ db:add-missing-indices;
           /refresh_config.sh;
         env:
+        - name: CONFIG_READONLY
+          value: ""
         - name: INSTALLED
           value: "true"
         - name: VERSION