chore: rename official pg to vanilla pg

Author: JashBook

.github/workflows/e2e-kbcli-k3s.yml

@@ -13,7 +13,7 @@ on:
         default: ''
       TEST_TYPE:
         description: 'test type (e.g. apecloud-mysql|postgresql|redis|mongodb|kafka|pulsar|mysqlscale|weaviate|qdrant|smartengine|
-        greptimedb|nebula|risingwave|starrocks|etcd|foxlake|orioledb|oracle-mysql|official-pg|asmysql|openldap|polardbx|
+        greptimedb|nebula|risingwave|starrocks|etcd|foxlake|orioledb|oracle-mysql|vanilla-pg|asmysql|openldap|polardbx|
         opensearch|elasticsearch|vllm|tdengine|milvus|clickhouse|pika|ggml|zookeeper|mariadb|tidb|xinference|
         oracle|opengauss|influxdb|flink|solr|doris|halo|mogdb|starrocks-ent|apecloud-postgresql|yashandb|redis-cluster|camellia-redis-proxy|dmdb|minio)'
         required: false

.github/workflows/e2e-kbcli.yml

@@ -13,7 +13,7 @@ on:
         default: ''
       TEST_TYPE:
         description: 'test type (e.g.  apecloud-mysql|postgresql|redis|mongodb|kafka|pulsar|mysqlscale|weaviate|qdrant|smartengine|
-        greptimedb|nebula|risingwave|starrocks|etcd|oceanbase|foxlake|orioledb|oracle-mysql|official-pg|asmysql|openldap|
+        greptimedb|nebula|risingwave|starrocks|etcd|oceanbase|foxlake|orioledb|oracle-mysql|vanilla-pg|asmysql|openldap|
         polardbx|opensearch|elasticsearch|vllm|tdengine|milvus|clickhouse|pika|ggml|zookeeper|mariadb|tidb|xinference|
         oracle|opengauss|influxdb|flink|solr|doris|halo|mogdb|oceanbase-ent|starrocks-ent|yashandb|redis-cluster|camellia-redis-proxy|dmdb|minio)'
         required: false

.github/workflows/release-image.yml

@@ -220,7 +220,7 @@ jobs:
       matrix:
         test-type: [ apecloud-mysql|postgresql|redis|mongodb|kafka|asmysql|elasticsearch|zookeeper|rabbitmq|damengdb|kingbase,
                      pulsar|mysqlscale|weaviate|qdrant|smartengine|greptimedb|nebula|risingwave|starrocks|etcd|oceanbase,
-                     foxlake|orioledb|oracle-mysql|official-pg|openldap|polardbx|opensearch|vllm|tdengine|milvus|clickhouse,
+                     foxlake|orioledb|oracle-mysql|vanilla-pg|openldap|polardbx|opensearch|vllm|tdengine|milvus|clickhouse,
                      pika|ggml|mariadb|tidb|xinference|oracle|opengauss|influxdb|flink|solr|doris,
                      halo|mogdb|oceanbase-ent|starrocks-ent|apecloud-postgresql|yashandb|redis-cluster|camellia-redis-proxy|dmdb|minio|orchestrator ]
     with: