Lexer wrong location when multiline comments

[olivernybroe]

When using the lexer with a schema that has a multiline comments the location is wrong.

Taken the following schema

"""
testing
"""
scalar something

It ends up saying that the name token scalar is on line 2.

[spawnia]

Can you provide a pull request with a failing test case? The issue might be with the lexer, but I think a test for this would fit better with https://github.com/webonyx/graphql-php/blob/e8098fae49e2a007f389aa838796c6c154138744/tests/Language/SchemaParserTest.php#L166.

[spawnia]

Fixed with https://github.com/webonyx/graphql-php/releases/tag/v15.11.1