Allure dont generate reports with package xunit.runner.visualstudio greater than 2.8.2

## Bug Description
when a c# project with xUnit has installed the package xunit.runner.visualstudio greater than 2.8.2 for example the nexe version is 3.0.0 the allure reports are not generated.

Steps
1. Have a project with c# and xUnit installed and couple ot tests created
2. Check that versions of packages are the latest ones:
Allure.Xunit v2.12.1
xunit.runner.visualstudio v3.1.5
3. Execute the project with the test cases

Actual Result: allure-results are not created using package xunit.runner.visualstudio v3.1.5 and sent the results even to Allure TestOps

Workaround: Downgrade package xunit.runner.visualstudio v2.8.2, but it is not a good solution because it could contain security issues in the future.

Start by reproducing the issue in a C# project with xUnit, Allure.Xunit v2.12.1, and xunit.runner.visualstudio v3.1.5, then compare it with runner v2.8.2. Trace the test execution and Allure result generation entry points. Done means allure-results are created and sent to Allure TestOps without downgrading the runner.

Written by the indexing model from the issue text.