Refactor offline bits out of `Features` class and use for CCR #6939

Job	Run time
Go: tracing with legacy workflow (macos-latest, stable-v2.17.6)	6m 38s
Go: tracing with legacy workflow (macos-latest, stable-v2.18.4)	7m 59s
Go: tracing with legacy workflow (macos-latest, linked)	6m 16s
Go: tracing with legacy workflow (ubuntu-latest, default)	1m 9s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.21.4)	1m 31s
Go: tracing with legacy workflow (ubuntu-latest, nightly-latest)	1m 10s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.17.6)	1m 20s
Go: tracing with legacy workflow (ubuntu-latest, linked)	1m 51s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.18.4)	1m 34s
Go: tracing with legacy workflow (macos-latest, stable-v2.21.4)	7m 0s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.22.4)	1m 23s
Go: tracing with legacy workflow (macos-latest, nightly-latest)	5m 28s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.19.4)	1m 31s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.20.7)	1m 23s
Go: tracing with legacy workflow (macos-latest, stable-v2.20.7)	6m 11s
Go: tracing with legacy workflow (macos-latest, stable-v2.22.4)	6m 22s
Go: tracing with legacy workflow (macos-latest, default)	5m 33s
Go: tracing with legacy workflow (macos-latest, stable-v2.19.4)	6m 47s
	1h 11m 6s

Provide feedback