Upgrade Kubernetes to v0.19.8 and Service Binding operator to v0.4.1

[astefanutti]

This PR:

• Upgrades Kubernetes dependencies to v0.19.8
• Upgrade Service Binding operator to v0.4.1
• Removes the dependency on github.com/operator-framework/operator-lifecycle-manager

Fixes #2067 thanks to @akihikokuroda.

Release Note

Upgrade Kubernetes to v0.19.8
Upgrade Service Binding operator to v0.4.1

[astefanutti]

I see some errors reported by the GC trait, e.g.:

{"level":"error","ts":1614609680.2096756,"logger":"camel-k.traits","msg":"cannot list child resources: cloudcredential.openshift.io/v1, Kind=CredentialsRequest","trait":"gc","api-version":"camel.apache.org/v1","kind":"Integration","ns":"camel-k","name":"routes-rest","error":"v1.ListOptions is not suitable for converting to \"cloudcredential.openshift.io/v1\" in scheme \"pkg/runtime/scheme.go:101\"","stacktrace":"github.com/go-logr/zapr.(*zapLogger).Error\n\tgithub.com/go-logr/zapr@v0.3.0/zapr.go:132\ngithub.com/apache/camel-k/pkg/util/log.Logger.Errorf\n\tgithub.com/apache/camel-k/pkg/util/log/log.go:60\ngithub.com/apache/camel-k/pkg/trait.(*garbageCollectorTrait).deleteEachOf\n\tgithub.com/apache/camel-k/pkg/trait/gc.go:161\ngithub.com/apache/camel-k/pkg/trait.(*garbageCollectorTrait).garbageCollectResources\n\tgithub.com/apache/camel-k/pkg/trait/gc.go:144"}

I have to investigate.

[astefanutti]

This is caused by kubernetes-sigs/controller-runtime#1238.

I'll downgrade controller-runtime to 0.6.3, and handle the upgrade to 0.7.x in a separate PR.