Refactor offline bits out of `Features` class and use for CCR #6906

Job	Run time
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.17.6)	1m 55s
Go: tracing with legacy workflow (macos-latest, stable-v2.18.4)	7m 6s
Go: tracing with legacy workflow (macos-latest, stable-v2.19.4)	6m 11s
Go: tracing with legacy workflow (macos-latest, stable-v2.17.6)	5m 41s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.19.4)	1m 39s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.18.4)	1m 34s
Go: tracing with legacy workflow (macos-latest, stable-v2.20.7)	6m 24s
Go: tracing with legacy workflow (macos-latest, linked)	6m 51s
Go: tracing with legacy workflow (ubuntu-latest, nightly-latest)	1m 8s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.20.7)	1m 41s
Go: tracing with legacy workflow (ubuntu-latest, linked)	1m 14s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.22.4)	1m 30s
Go: tracing with legacy workflow (macos-latest, stable-v2.22.4)	5m 58s
Go: tracing with legacy workflow (macos-latest, stable-v2.21.4)	4m 57s
Go: tracing with legacy workflow (macos-latest, default)	6m 11s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.21.4)	1m 37s
Go: tracing with legacy workflow (macos-latest, nightly-latest)	6m 58s
Go: tracing with legacy workflow (ubuntu-latest, default)	1m 35s
	1h 10m 10s

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