Merge pull request #522 from tapdata/TAP-6476-v1.4.3

fix: TAP-6476 gaussdb transform char type with byte ratio 3

Author: jarad0628

connectors/huawei-cloud-gaussdb-connector/src/main/resources/spec_gauss_db.json

@@ -305,7 +305,7 @@
       "to": "TapString",
       "byte": "10m",
       "defaultByte": 1,
-      "byteRatio": 1,
+      "byteRatio": 3,
       "fixed": true
     },
     "character varying[($byte)]": {