[release/3.0] Port sdl validation fix (#42010)
[release/3.0] Port sdl validation fix (#42010)

* Update TsaBugAreaPath to fix SDL Validation (#41993)

* Update SDL validation to use values from corefx-sdl-validation variable group (#42098)

BrennanConroy/corefx,BrennanConroy/corefx,BrennanConroy/corefx