doc: `pytest.raises`: link to `python:try` (#6794)
doc: `pytest.raises`: link to `python:try` (#6794)


nicoddemus/pytest,pytest-dev/pytest,Akasurde/pytest,nicoddemus/pytest,RonnyPfannschmidt/pytest,The-Compiler/pytest,alfredodeza/pytest,The-Compiler/pytest,markshao/pytest