More fee rate sources #3774

Job	Run time
linux-vanilla--newmono-only	10m 23s
linux-github--dotnet-and-newmono	7m 9s
linux-github--dotnet-and-mono	3m 40s
linux-vanilla--stockdotnet6-and-newmono	7m 14s
linux-vanilla--stockdotnet6-and-stockmono	7m 21s
linux-vanilla--stockdotnet6-only	5m 15s
linux-vanilla--stockmono-only	6m 2s
macOS--dotnet6-and-mono	14m 34s
macOS--dotnet6-only	4m 23s
windows--dotnet6-and-legacyFramework	6m 22s
macOS--mono-only	12m 18s
windows--dotnet6-only	6m 50s
windows--legacyFramework-only	7m 33s
conventions	2m 38s
snap_pkg	6m 11s
snap_pkg_beta	7m 48s
	1h 55m 41s

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