postgres: automatic update of reference spec and example

Ref: nais/pgrator@4558c76

Author: tronghn

docs/persistence/postgresql/reference/postgres-example.md

@@ -1,12 +1,11 @@
 ---
-tags: [kafka, reference]
+tags: [postgres, reference]
 ---
 
 # Nais Postgres example YAML
 
 <!--
-  This documentation was automatically generated by the liberator pipeline.
-  See https://github.com/nais/liberator/actions for details.
+  This documentation was automatically generated by https://github.com/nais/pgrator/actions
   
   DO NOT MAKE MANUAL CHANGES TO THIS FILE, THEY WILL BE OVERWRITTEN!
 -->
@@ -23,7 +22,6 @@ For an in-depth explanation of each field, head over to the [reference documenta
 apiVersion: data.nais.io/v1
 kind: Postgres
 metadata:
-  creationTimestamp: null
   labels:
     team: myteam
   name: mycluster
@@ -43,7 +41,7 @@ spec:
       diskSize: 2Gi
       memory: 2Gi
   database:
-    collation: nb_NO.UTF-8
+    collation: nb_NO
     extensions:
     - name: postgis
   maintenanceWindow:

docs/persistence/postgresql/reference/postgres-spec.md

@@ -1,5 +1,5 @@
 ---
-tags: [kafka, reference]
+tags: [postgres, reference]
 ---
 
 <style>
@@ -12,8 +12,7 @@ tags: [kafka, reference]
 # Nais Postgres reference
 
 <!--
-  This documentation was automatically generated by the liberator pipeline.
-  See https://github.com/nais/liberator/actions for details.
+  This documentation was automatically generated by https://github.com/nais/pgrator/actions
   
   DO NOT MAKE MANUAL CHANGES TO THIS FILE, THEY WILL BE OVERWRITTEN!
 -->
@@ -155,7 +154,6 @@ CPU resources for the Postgres cluster.
 
 Type: `object`<br />
 Required: `true`<br />
-Default value: `0`<br />
 
 ??? example
     ``` yaml
@@ -170,7 +168,6 @@ Disk size for the Postgres cluster.
 
 Type: `object`<br />
 Required: `true`<br />
-Default value: `0`<br />
 
 ??? example
     ``` yaml
@@ -185,7 +182,6 @@ Memory resources for the Postgres cluster.
 
 Type: `object`<br />
 Required: `true`<br />
-Default value: `0`<br />
 
 ??? example
     ``` yaml
@@ -205,7 +201,7 @@ Required: `false`<br />
     ``` yaml
     spec:
       database:
-        collation: nb_NO.UTF-8
+        collation: nb_NO
         extensions:
           - name: postgis
     ```
@@ -221,7 +217,7 @@ Allowed values: `en_US`, `nb_NO`<br />
     ``` yaml
     spec:
       database:
-        collation: nb_NO.UTF-8
+        collation: nb_NO
     ```
 
 ### database.extensions