Update deploy.bicep

[zaidmohd]

Update arm/Microsoft.Network/connections/deploy.bicep VPN Shared key for deploying ER connection.

Issue when creating ER connections for ER, due to this check.
It failed with the error - Shared Key cannot be set for Connection

Please see https://aka.ms/DeployOperations for usage details.\",\r\n \"details\": [\r\n {\r\n \"code\": \"BadRequest\",\r\n \"message\": \"{\\r\\n \\\"error\\\": {\\r\\n \\\"code\\\": \\\"CannotSetSharedKeyForExpressRouteConnectionType\\\",\\r\\n \\\"message\\\": \\\"Shared Key cannot be set for Connection /subscriptions/82fac175-a212-4825-bc86-69d11d6ed2da/resourceGroups/rg-s-a-hubnetwork/providers/Microsoft.Network/connections/con-s-a-hub of type ExpressRoute.\\\",\\r\\n \\\"details\\\": []\\r\\n }\\r\\n}\"\r\n }\r\n ]\r\n }\r\n ]\r\n }\r\n}"\r\n }\r\n ]\r\n }\r\n ]\r\n }\r\n}"}]}}

Change

Type of Change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist

• I'm sure there are no other open Pull Requests for the same update/change
• My corresponding pipelines / checks run clean and green without any errors or warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (readme)
• I did format my code

[AlexanderSehr]

Awesome @zaidmohd , thanks :)