[BUG] tcl: incorrect syntax highlighting after regex

[sigmuha]

Describe the bug
When a # is used in a regex, this is registered at a comment, ruining the rest of the documents' highlighting.

Environment (please complete the following information):

• OS: Windows 11
• VS Code version 1.107.1
• Extension version 1.22.1

Steps to reproduce

• Create a tcl file
• Add a regex pattern with a # in.
• Observe the rest of the document below not being formatted correctly

Expected behavior
The expected behaviour is that the syntax highlighter should ignore the # as it is inside of a regex pattern.

Actual behavior