Always try to restart `dstack-shim.service` #2478

Job	Run time
gateway-build	17s
python-lint	19s
runner-test	1m 40s
python-test (macos-latest, 3.8)	1m 48s
python-test (macos-latest, 3.9)	1m 9s
python-test (macos-latest, 3.10)	1m 8s
python-test (macos-latest, 3.11)	1m 10s
python-test (ubuntu-latest, 3.8)	1m 36s
python-test (ubuntu-latest, 3.9)	1m 42s
python-test (ubuntu-latest, 3.10)	1m 49s
python-test (ubuntu-latest, 3.11)	1m 39s
runner-compile (linux, amd64, ubuntu-latest)	34s
generate-json-schema	40s
update-get-dstack	11s
runner-upload	17s
	15m 59s

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