As introduced on #874

I find it very annoying that I have to disable all crawler if I want an autodiscovery manifest handle only one crawler
No default crawler when autodiscovery is used from manifest

Signed-off-by: Olblak me@olblak.com

Test

To test this pull request, you can test the two following workflow:

go build -o bin/updatecli .
./bin/updatecli manifest show --config e2e/updatecli.d/warning.d/autodiscovery/fleet --experimental 
# Should only detect rancherl/fleet and helm manifest 
./bin/updatecli manifest show --local-autodiscovery --experimental
# Should display rancher/fleet, helm, and Maven manifest
go test

Additional Information

Tradeoff

Potential improvement