Pass dotnetEfVersion in Helix test runner

[wtgodbe]

Port of a test fix from 7.0. Without this, the Helix Test Runner downloads the latest stable dotnet-ef from nuget.org, so once 10.0 ships, 9.0 tests using dotnet-ef will fail.

[wtgodbe]

Weird, it looks like the tool .nuspec's are winding up in the Correlation payload, not the .nupkg's:

2023-11-16T18:30:12.5792666Z Displaying directory contents for C:\h\w\B82909DB\p:
2023-11-16T18:30:12.5793039Z .signature.p7s
2023-11-16T18:30:12.5793085Z dotnet-dump.nuspec
2023-11-16T18:30:12.5793112Z dotnet-ef.nuspec
2023-11-16T18:30:12.5793138Z dotnet-serve.nuspec
2023-11-16T18:30:12.5793164Z Icon.png
2023-11-16T18:30:12.5793189Z README.md
2023-11-16T18:30:12.5793214Z test-configuration.json
2023-11-16T18:30:12.5793238Z [Content_Types].xml
2023-11-16T18:30:12.5793719Z dotnet-cli
2023-11-16T18:30:12.5793768Z HelixTestRunner
2023-11-16T18:30:12.5793794Z package
2023-11-16T18:30:12.5793817Z reporter
2023-11-16T18:30:12.5793842Z scripts
2023-11-16T18:30:12.5793866Z tools
2023-11-16T18:30:12.5793889Z _rels

Despite us including the .nupkg's in the correlation payload itemgroup:

aspnetcore/eng/helix/helix.proj

Lines 72 to 74 in d24f2d7

	<HelixCorrelationPayload Include="$(NUGET_PACKAGES)\dotnet-dump\$(DotnetDumpVersion)\dotnet-dump.$(DotnetDumpVersion).nupkg" />
	<HelixCorrelationPayload Include="$(NUGET_PACKAGES)\dotnet-ef\$(DotnetEfVersion)\dotnet-ef.$(DotnetEfVersion).nupkg" />
	<HelixCorrelationPayload Include="$(NUGET_PACKAGES)\dotnet-serve\$(DotnetServeVersion)\dotnet-serve.$(DotnetServeVersion).nupkg" />

Will grab a binlog and take a look

[dotnet-policy-service]

Looks like this PR hasn't been active for some time and the codebase could have been changed in the meantime.
To make sure no conflicting changes have occurred, please rerun validation before merging. You can do this by leaving an /azp run comment here (requires commit rights), or by simply closing and reopening.