External name of procedure with parameter in curly braces

[SergeyPugachyov]

The code is:

 	CREATE PROCEDURE ESB_SEND(
 		IN CNUM CHARACTER
 	)
 	RETURNS CHARACTER
 	LANGUAGE DATABASE
 	EXTERNAL NAME "{SCHEMA_NAME_PARAMETER}.INTEGRATION.SEND_ACQ";

The test ParsingErrorCheck failed because of curly braces. I fixed it by adding them in the regexp pattern IDENTIFIER_PART_ESCAPED in the file esql-frontend\src\main\java\com\exxeta\iss\sonar\esql\lexer\EsqlLexer.java:

private static final String IDENTIFIER_PART_ESCAPED = "(?:" + IDENTIFIER_START + "|[{" + UNICODE_COMBINING_MARK + UNICODE_DIGIT + UNICODE_CONNECTOR_PUNCTUATION+ "-.:<> " + "}]|\"\")";