[Release] Update index.json for extension [ k8s-extension ] (Azure#3441)

Triggered by Azure CLI Extensions Release Pipeline - ADO_BUILD_ID=918007

Last commit: Azure@3e253a9

Author: Azure CLI Bot

src/index.json

@@ -11794,6 +11794,49 @@
                     "version": "0.4.1"
                 },
                 "sha256Digest": "10d2318f7998c5bfee637141ab89581a974893a0f062d9dc55ae5c2cc9f9b4ab"
+            },
+            {
+                "downloadUrl": "https://azcliprod.blob.core.windows.net/cli-extensions/k8s_extension-0.4.2-py3-none-any.whl",
+                "filename": "k8s_extension-0.4.2-py3-none-any.whl",
+                "metadata": {
+                    "azext.isPreview": true,
+                    "azext.minCliCoreVersion": "2.24.0",
+                    "classifiers": [
+                        "Development Status :: 4 - Beta",
+                        "Intended Audience :: Developers",
+                        "Intended Audience :: System Administrators",
+                        "Programming Language :: Python",
+                        "Programming Language :: Python :: 3",
+                        "Programming Language :: Python :: 3.6",
+                        "Programming Language :: Python :: 3.7",
+                        "Programming Language :: Python :: 3.8",
+                        "License :: OSI Approved :: MIT License"
+                    ],
+                    "extensions": {
+                        "python.details": {
+                            "contacts": [
+                                {
+                                    "email": "azpycli@microsoft.com",
+                                    "name": "Microsoft Corporation",
+                                    "role": "author"
+                                }
+                            ],
+                            "document_names": {
+                                "description": "DESCRIPTION.rst"
+                            },
+                            "project_urls": {
+                                "Home": "https://github.com/Azure/azure-cli-extensions"
+                            }
+                        }
+                    },
+                    "generator": "bdist_wheel (0.30.0)",
+                    "license": "MIT",
+                    "metadata_version": "2.0",
+                    "name": "k8s-extension",
+                    "summary": "Microsoft Azure Command-Line Tools K8s-extension Extension",
+                    "version": "0.4.2"
+                },
+                "sha256Digest": "aabdf00aa0cabddb142ef829e487d1b33c716ad498a4eee29389fd889e1f30d1"
             }
         ],
         "k8sconfiguration": [