Use abstraction over EqtTrace on platform services

[Evangelink]

Fixes #2140

[Evangelink]

Locally the test TestDataSourceFromAppConfig consistently fails, I can repro doing it inside the playground. There is a crash at the end of the lambda of TestMethodRunner. I haven't been able to diagnose why it's failing but it seems the error doesn't appear in CI.

[Youssef1313]

I can repro locally. Looks like a native crash (access violation) in C:\Program Files\Common Files\Microsoft Shared\Office16\mso98win32client.dll.

Unhandled exception at 0x00007FFD5880BADB (mso98win32client.dll) in DataSourceTests.exe_260121_121807.dmp: 0xC0000005: Access violation reading location 0x0000000000004DE1.

Dump is captured by procdump -ma -e -x . DataSourceTests.exe

[Evangelink]

Closing as we will go with changes from Youssef in #7271 and #7277