Add command to run single rekt test in the e2e-debug script (#7426)

* add test cmd

Signed-off-by: Griffin <prakritimandal611@gmail.com>

* implemented the changes

Signed-off-by: Griffin <prakritimandal611@gmail.com>

---------

Signed-off-by: Griffin <prakritimandal611@gmail.com>

hack/e2e-debug.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+# Copyright 2023 The Knative Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+export GO111MODULE=on
+
+source $(dirname "$0")/../test/e2e-common.sh
+
+test_name="$1"
+test_dir="$2"
+
+if [[ -z "${test_name}" ]]; then
+	fail_test "No testname provided"
+fi
+
+if [[ -z "${test_dir}" ]]; then
+	fail_test "No testdir provided"
+fi
+
+header "Waiting for Knative eventing to come up"
+
+wait_until_pods_running knative-eventing || fail_test "Pods in knative-eventing didn't come up"
+
+header "Running tests"
+
+go_test_e2e -timeout=30m -run="${test_name}" "${test_dir}" || fail_test "Test(s) failed"