fix(windows-agent): Don't bail out if WSL adapter is not available #3894

Job	Run time
Flutter Quality checks (ubuntu, p4w_ms_store)	1m 24s
Go Quality checks (ubuntu, agentapi)	2m 10s
C++ Quality Checks	2m 10s
Flutter Quality checks (ubuntu, ubuntupro)	2m 51s
Go Quality checks (ubuntu, contractsapi)	1m 23s
Flutter Quality checks (windows, p4w_ms_store)	2m 41s
Flutter integration tests (windows)	8m 27s
Go Quality checks (ubuntu, mocks)	1m 39s
Flutter Quality checks (windows, ubuntupro)	4m 51s
Run Go tests with mocks (ubuntu, windows-agent)	4m 35s
Go Quality checks (ubuntu, storeapi/go-wrapper/microsoftstore)	1m 28s
Run Go tests with mocks (ubuntu, wsl-pro-service)	4m 7s
Go Quality checks (ubuntu, windows-agent)	1m 34s
Run Go tests with mocks (ubuntu, common)	1m 16s
Go Quality checks (ubuntu, wsl-pro-service)	1m 29s
Go Quality checks (ubuntu, common)	1m 42s
Run Go tests with mocks (windows, storeapi/go-wrapper/microsoftstore)	3m 55s
Go Quality checks (windows, agentapi)	5m 12s
Run Go tests with mocks (windows, windows-agent)	6m 10s
Go Quality checks (windows, contractsapi)	2m 47s
Run Go tests with mocks (windows, common)	1m 47s
Go Quality checks (windows, mocks)	4m 34s
Go Quality checks (windows, storeapi/go-wrapper/microsoftstore)	3m 49s
Go Quality checks (windows, windows-agent)	4m 20s
Go Quality checks (windows, end-to-end)	3m 44s
Go Quality checks (windows, common)	3m 21s
	1h 23m 26s

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