Add context to all relevant cloud APIs

This adds context to all the relevant cloud provider interface signatures.
Callers of those APIs are currently satisfied using context.TODO().
There will be follow on PRs to push the context through the stack.
For an idea of the full scope of this change please look at PR #58532.

pkg/controller/util/node/controller_utils.go

@@ -17,6 +17,7 @@ limitations under the License.
 package node
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"strings"
@@ -177,7 +178,7 @@ func ExistsInCloudProvider(cloud cloudprovider.Interface, nodeName types.NodeNam
 	if !ok {
 		return false, fmt.Errorf("%v", ErrCloudInstance)
 	}
-	if _, err := instances.ExternalID(nodeName); err != nil {
+	if _, err := instances.ExternalID(context.TODO(), nodeName); err != nil {
 		if err == cloudprovider.InstanceNotFound {
 			return false, nil
 		}