Update setup.py

upgrade the azure.core package

Author: guoqing2023

sdk/communication/azure-communication-phonenumbers/setup.py

@@ -66,7 +66,7 @@
     python_requires=">=3.7",
     install_requires=[
         "msrest>=0.7.1",
-        'azure-core<2.0.0,>=1.24.0',
+        'azure-core<2.0.0,>=1.28.0',
     ],
     extras_require={
         ":python_version<'3.8'": ["typing-extensions"]
@@ -75,4 +75,4 @@
         'Bug Reports': 'https://github.com/Azure/azure-sdk-for-python/issues',
         'Source': 'https://github.com/Azure/azure-sdk-for-python',
     }
-)
+)