Http2_MultipleConnectionsEnabled_IdleConnectionTimeoutExpired_ConnectionRemovedAndNewCreated test failure

[jkotas]

System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_Http2.Http2_MultipleConnectionsEnabled_IdleConnectionTimeoutExpired_ConnectionRemovedAndNewCreated [FAIL]
     Assert.Equal() Failure
     Expected: 2
     Actual:   1
     Stack Trace:
       /_/src/libraries/System.Net.Http/tests/FunctionalTests/SocketsHttpHandlerTest.cs(2176,0): at System.Net.Http.Functional.Tests.SocketsHttpHandlerTest_Http2.Http2_MultipleConnectionsEnabled_IdleConnectionTimeoutExpired_ConnectionRemovedAndNewCreated()
       --- End of stack trace from previous location ---

Failed in #40053 on net5.0-Linux-Debug-x64-CoreCLR_release-Debian.9.Amd64.Open

Log: https://github.com/dotnet/runtime/pull/40053/checks?check_run_id=925107221

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[ManickaP]

cc: @alnikola

[alnikola]

It's caused by a test agent perf downgrade. A bit later, I will try to adjust timeouts again.