fix(validation): also block control characters in entity name pattern

Updated pattern to use \x00-\x1f range to block all control characters
including \r, \n, \t, \0 in addition to reserved FQN characters.
This also restores the \r restriction that was present in the original
dot metacharacter but lost in the character class rewrite.

Author: jaya6400

openmetadata-spec/src/main/resources/json/schema/entity/data/table.json

@@ -235,7 +235,7 @@
       "description": "Local name (not fully qualified name) of the column. ColumnName is `-` when the column is not named in struct dataType. For example, BigQuery supports struct with unnamed fields.",
       "type": "string",
       "minLength": 1,
-      "pattern": "^((?!::)[^>\"\n])*$"
+      "pattern": "^((?!::)[^>\"\\x00-\\x1f])*$"
     },
     "partitionIntervalTypes": {
       "javaType": "org.openmetadata.schema.type.PartitionIntervalTypes",

openmetadata-spec/src/main/resources/json/schema/type/basic.json

@@ -124,13 +124,13 @@
       "type": "string",
       "minLength": 1,
       "maxLength": 256,
-      "pattern": "^((?!::)[^>\"\n])*$"
+      "pattern": "^((?!::)[^>\"\\x00-\\x1f])*$"
     },
     "testCaseEntityName": {
       "description": "Name that identifies a test definition and test case.",
       "type": "string",
       "minLength": 1,
-      "pattern": "^((?!::)[^>\"\n])*$"
+      "pattern": "^((?!::)[^>\"\\x00-\\x1f])*$"
     },
     "fullyQualifiedEntityName": {
       "description": "A unique name that identifies an entity. Example for table 'DatabaseService.Database.Schema.Table'.",