Build

Replace enums with strings in the DB, JobSubmission.termination_reason, and Run.termination_reason #5225

Job	Run time
code-lint	49s
frontend-build	9s
gateway-build	16s
runner-test (ubuntu-latest)	26s
docs-build	2m 16s
runner-compile (ubuntu-24.04, linux, amd64)	25s
runner-compile (ubuntu-24.04-arm, linux, arm64)	22s
python-test (macos-latest, 3.9)	1m 40s
python-test (macos-latest, 3.12)	1m 10s
python-test (macos-latest, 3.11)	1m 26s
python-test (ubuntu-latest, 3.12)	3m 34s
python-test (macos-latest, 3.13)	1m 15s
python-test (ubuntu-latest, 3.10)	3m 48s
python-test (windows-latest, 3.9)	1m 16s
python-test (macos-latest, 3.10)	1m 41s
python-test (ubuntu-latest, 3.9)	3m 31s
python-test (ubuntu-latest, 3.13)	3m 16s
python-test (ubuntu-latest, 3.11)	3m 20s
python-test (windows-latest, 3.10)	1m 8s
python-test (windows-latest, 3.11)	1m 7s
python-test (windows-latest, 3.12)	1m 22s
python-test (windows-latest, 3.13)	1m 13s
runner-upload	23s
generate-json-schema	26s
update-get-dstack	9s
	36m 28s

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