[Feature]: Support an option to set directory location for sources included in the tracings (.NET)

[romanresh]

🚀 Feature Request

We need to set the location of the sources for .NET, like it's available for JAVA with the PLAYWRIGHT_JAVA_SRC variable.

Example

No response

Motivation

Sometime different machines are used to build a testing DLL and running tests from this DLL. And paths to sources are different on these machines. We need the analogue to the PLAYWRIGHT_JAVA_SRC variable but for .NET tests.