Forbid running multinode tasks on non-cluster fleets (#3277) #5791

Job	Run time
compute-version	2s
build-docs / build-docs	1m 42s
build-artifacts / frontend-build	11s
build-artifacts / runner-test (macos-latest)	1m 29s
build-artifacts / runner-test (ubuntu-latest)	1m 4s
build-artifacts / code-lint	41s
build-artifacts / gateway-build	10s
build-artifacts / python-build	21s
build-artifacts / generate-json-schema	19s
build-artifacts / python-test (macos-latest, 3.11)	2m 56s
build-artifacts / python-test (ubuntu-latest, 3.11)	4m 16s
build-artifacts / python-test (windows-latest, 3.13)	2m 18s
build-artifacts / python-test (ubuntu-latest, 3.9)	4m 7s
build-artifacts / python-test (macos-latest, 3.10)	2m 5s
build-artifacts / python-test (ubuntu-latest, 3.12)	4m 17s
build-artifacts / python-test (windows-latest, 3.11)	2m 14s
build-artifacts / python-test (macos-latest, 3.9)	3m 6s
build-artifacts / python-test (macos-latest, 3.12)	2m 20s
build-artifacts / python-test (macos-latest, 3.13)	2m 19s
build-artifacts / python-test (windows-latest, 3.12)	2m 14s
build-artifacts / python-test (ubuntu-latest, 3.10)	4m 27s
build-artifacts / python-test (windows-latest, 3.10)	2m 3s
build-artifacts / python-test (windows-latest, 3.9)	1m 51s
build-artifacts / python-test (ubuntu-latest, 3.13)	3m 52s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	43s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	32s
upload-post-pypi-artifacts / upload-post-pypi-artifacts	14s
upload-pre-pypi-artifacts / upload-pre-pypi-artifacts	23s
	52m 16s

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