Migrate off of EOL Alpine 3.17 container image

[mthalman]

Alpine 3.17 is EOL: dotnet/core#9571

The following references should be updated to target a supported Alpine version:

dotnet-monitor/eng/helix/Helix.proj

Lines 95 to 103 in 2e724b1

	<HelixAvailableTargetQueue Include="ubuntu.2204.armarch$(QueueSuffix)@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.17-helix-arm64v8"
	Condition="'$(HelixArchitecture)' == 'arm64'">
	<TestRunName>Alpine 3.17 $(HelixArchitecture) $(HelixConfiguration)</TestRunName>
	</HelixAvailableTargetQueue>
	<!-- linux-musl-x64 -->
	<HelixAvailableTargetQueue Include="ubuntu.2204.amd64$(QueueSuffix)@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.17-helix-amd64"
	Condition="'$(HelixArchitecture)' == 'x64'">
	<TestRunName>Alpine 3.17 $(HelixArchitecture) $(HelixConfiguration)</TestRunName>
	</HelixAvailableTargetQueue>

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