[Nebius] Support spot instances and B200 (#2965) #286

Job	Run time
code-lint	41s
frontend-build	1m 21s
runner-test	3m 24s
gateway-build	13s
python-test (macos-latest, 3.11)	1m 22s
python-test (macos-latest, 3.10)	1m 47s
python-test (macos-latest, 3.13)	1m 13s
python-test (ubuntu-latest, 3.11)	3m 45s
python-test (macos-latest, 3.12)	1m 16s
python-test (ubuntu-latest, 3.12)	3m 59s
python-test (ubuntu-latest, 3.9)	3m 57s
python-test (ubuntu-latest, 3.10)	4m 2s
python-test (macos-latest, 3.9)	1m 42s
python-test (ubuntu-latest, 3.13)	3m 48s
python-test (windows-latest, 3.9)	1m 6s
python-test (windows-latest, 3.10)	1m 7s
python-test (windows-latest, 3.11)	1m 12s
python-test (windows-latest, 3.13)	1m 18s
python-test (windows-latest, 3.12)	1m 18s
runner-compile (ubuntu-24.04-arm, linux, arm64)	27s
runner-compile (ubuntu-24.04, linux, amd64)	25s
runner-upload	14s
pypi-upload	31s
server-docker-upload	5m 13s
update-get-dstack-tag	12s
generate-json-schema	19s
	45m 52s

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