[Keyvault] KV Keys add back changelog to pyproject.toml (#42467)

Author: swathipil

sdk/keyvault/azure-keyvault-keys/pyproject.toml

@@ -36,7 +36,7 @@ repository = "https://github.com/Azure/azure-sdk-for-python/tree/main/sdk"
 
 [tool.setuptools.dynamic]
 version = {attr = "azure.keyvault.keys._version.VERSION"}
-readme = {file = ["README.md"], content-type = "text/markdown"}
+readme = {file = ["README.md", "CHANGELOG.md"], content-type = "text/markdown"}
 
 [tool.setuptools.packages.find]
 exclude = ["samples*", "tests*", "azure", "azure.keyvault"]