remove windows drive from path

Author: Bertk

test/coverlet.msbuild.tasks.tests/Reporters.cs

@@ -43,6 +43,11 @@ public void Msbuild_ReportWriter(string? coverletMultiTargetFrameworksCurrentTFM
           new CoverageResult() { Modules = new Modules(), Parameters = new CoverageParameters() }, null);
 
       string path = reportWriter.WriteReport();
+      //remove drive for windows
+      if (path.Contains(':'))
+      {
+        path = path.Substring(2);
+      }
       // Path.Combine depends on OS so we can change only win side to avoid duplication
       Assert.Equal(path.Replace('/', Path.DirectorySeparatorChar), expectedFileName.Replace('/', Path.DirectorySeparatorChar));
     }