New unit tests updated for Kube 1.22 ExecCredential changes from main

After merging the new Kube 1.22 ExecCredential changes from main into
this feature branch, some of the new units test on this feature branch
needed to be update to account for the new ExecCredential "interactive"
field.

cmd/pinniped/cmd/login_oidc_test.go

@@ -173,7 +173,7 @@ func TestLoginOIDCCommand(t *testing.T) {
 				"--credential-cache", "", // must specify --credential-cache or else the cache file on disk causes test pollution
 			},
 			wantOptionsCount: 5,
-			wantStdout:       `{"kind":"ExecCredential","apiVersion":"client.authentication.k8s.io/v1beta1","spec":{},"status":{"expirationTimestamp":"3020-10-12T13:14:15Z","token":"test-id-token"}}` + "\n",
+			wantStdout:       `{"kind":"ExecCredential","apiVersion":"client.authentication.k8s.io/v1beta1","spec":{"interactive":false},"status":{"expirationTimestamp":"3020-10-12T13:14:15Z","token":"test-id-token"}}` + "\n",
 		},
 		{
 			name: "oidc upstream type with browser flow is allowed",
@@ -185,7 +185,7 @@ func TestLoginOIDCCommand(t *testing.T) {
 				"--credential-cache", "", // must specify --credential-cache or else the cache file on disk causes test pollution
 			},
 			wantOptionsCount: 4,
-			wantStdout:       `{"kind":"ExecCredential","apiVersion":"client.authentication.k8s.io/v1beta1","spec":{},"status":{"expirationTimestamp":"3020-10-12T13:14:15Z","token":"test-id-token"}}` + "\n",
+			wantStdout:       `{"kind":"ExecCredential","apiVersion":"client.authentication.k8s.io/v1beta1","spec":{"interactive":false},"status":{"expirationTimestamp":"3020-10-12T13:14:15Z","token":"test-id-token"}}` + "\n",
 		},
 		{
 			name: "oidc upstream type with unsupported flow is an error",
@@ -210,7 +210,7 @@ func TestLoginOIDCCommand(t *testing.T) {
 				"--credential-cache", "", // must specify --credential-cache or else the cache file on disk causes test pollution
 			},
 			wantOptionsCount: 5,
-			wantStdout:       `{"kind":"ExecCredential","apiVersion":"client.authentication.k8s.io/v1beta1","spec":{},"status":{"expirationTimestamp":"3020-10-12T13:14:15Z","token":"test-id-token"}}` + "\n",
+			wantStdout:       `{"kind":"ExecCredential","apiVersion":"client.authentication.k8s.io/v1beta1","spec":{"interactive":false},"status":{"expirationTimestamp":"3020-10-12T13:14:15Z","token":"test-id-token"}}` + "\n",
 		},
 		{
 			name: "ldap upstream type with CLI flow is allowed",