⚠️ Update dependencies to k8s 1.17

[vincepri]

From the older PR: #754

This PR bumps controller-runtime to use Kubernetes 1.17 libraries, which will enable controller/operator developers to take advantage of the latest 1.17 client-go and API updates in their projects.

Due to an upstream change in k8s.io/api, there is one breaking change in controller-runtime's pkg/leaderelection/fake package, which is used only in pkg/manager/manager_test.go, at least internally. Should we deprecate this fake ResourceLock implementation from the public API and plan to move this into an internal tree?

Here's the notes and output from go-apidiff:

• There's the one aforementioned breaking change in sigs.k8s.io/controller-runtime
• As is expected with a version bump to the next major Kubernetes version, there are a raft of breaking API changes to libraries that controller-runtime imports and uses. For users of controller-runtime that also use these libraries, there may need to be code refactorings to address these breakages.

$ go-apidiff master k8s-1.17 --compare-imports

sigs.k8s.io/controller-runtime/pkg/leaderelection/fake
  Incompatible changes:
  - (*ResourceLock).Get: changed from func() (*k8s.io/client-go/tools/leaderelection/resourcelock.LeaderElectionRecord, error) to func() (*k8s.io/client-go/tools/leaderelection/resourcelock.LeaderElectionRecord, []byte, error)

k8s.io/client-go/kubernetes
  Incompatible changes:
  - Interface.DiscoveryV1beta1: added
  - Interface.FlowcontrolV1alpha1: added

github.com/onsi/ginkgo/config
  Incompatible changes:
  - VERSION: value changed from "1.8.0" to "1.10.1"

k8s.io/apimachinery/pkg/apis/meta/v1
  Incompatible changes:
  - Convert_Slice_string_To_v1_DeletionPropagation: removed

k8s.io/client-go/rest
  Incompatible changes:
  - (*Request).WatchWithSpecificDecoders: removed
  - NewRESTClient: changed from func(*net/url.URL, string, ContentConfig, float32, int, k8s.io/client-go/util/flowcontrol.RateLimiter, *net/http.Client) (*RESTClient, error) to func(*net/url.URL, string, ClientContentConfig, k8s.io/client-go/util/flowcontrol.RateLimiter, *net/http.Client) (*RESTClient, error)
  - NewRequest: changed from func(HTTPClient, string, *net/url.URL, string, ContentConfig, Serializers, BackoffManager, k8s.io/client-go/util/flowcontrol.RateLimiter, time.Duration) *Request to func(*RESTClient) *Request
  - RESTClient.Throttle: removed
  - Serializers: removed

github.com/prometheus/client_golang/prometheus
  Incompatible changes:
  - DefObjectives: removed
  - Handler: removed
  - InstrumentHandler: removed
  - InstrumentHandlerFunc: removed
  - InstrumentHandlerFuncWithOpts: removed
  - InstrumentHandlerWithOpts: removed
  - UninstrumentedHandler: removed

k8s.io/client-go/tools/leaderelection/resourcelock
  Incompatible changes:
  - (*ConfigMapLock).Get: changed from func() (*LeaderElectionRecord, error) to func() (*LeaderElectionRecord, []byte, error)
  - (*EndpointsLock).Get: changed from func() (*LeaderElectionRecord, error) to func() (*LeaderElectionRecord, []byte, error)
  - (*LeaseLock).Get: changed from func() (*LeaderElectionRecord, error) to func() (*LeaderElectionRecord, []byte, error)
  - Interface.Get: changed from func() (*LeaderElectionRecord, error) to func() (*LeaderElectionRecord, []byte, error)

k8s.io/apimachinery/pkg/labels
  Incompatible changes:
  - Selector.RequiresExactMatch: added

k8s.io/apimachinery/pkg/apis/meta/v1/unstructured
  Incompatible changes:
  - JSONFallbackEncoder: removed

github.com/onsi/ginkgo
  Incompatible changes:
  - GINKGO_VERSION: value changed from "1.8.0" to "1.10.1"

k8s.io/api/core/v1
  Incompatible changes:
  - NodeSpec.DoNotUse_ExternalID: removed

k8s.io/client-go/tools/record
  Incompatible changes:
  - EventBroadcaster.Shutdown: added

k8s.io/apimachinery/pkg/runtime
  Incompatible changes:
  - Encoder.Identifier: added
  - GroupVersioner.Identifier: added
  - GroupVersioners: removed
  - VersionedObjects: removed

[vincepri]

Made sure to use @joelanford older commits for attribution, this should be good to go!

/assign @DirectXMan12 @gerred

[vincepri]

/retest

[joelanford]

/lgtm

[camilamacedo86]

/lgtm

[DirectXMan12]

/approve

[k8s-ci-robot]

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