Fix (release): Fix function `Get-RepositoryReleaseLatest` to correctly return the latest tag if it is the only tag #145

Job	Run time
test-powershell-5-1-windows-2019	1m 16s
test-powershell-6-1-container	15s
test-powershell-6-2-container	15s
test-powershell-5-1-windows-2022	1m 35s
test-powershell-7-0-container	18s
test-powershell-7-1-container	13s
test-powershell-7-2-container	17s
test-powershell-7-3-container	14s
test-powershell-7-4-container	13s
test-powershell-core-linux	21s
test-powershell-core-macos	39s
test-powershell-core-windows	31s
	6m 7s

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