feat(networkconnectivity): update the api

#### networkconnectivity:v1alpha1

The following keys were deleted:
- resources.projects.resources.locations.resources.serviceConnectPolicies.methods.getIamPolicy (Total Keys: 14)
- resources.projects.resources.locations.resources.serviceConnectPolicies.methods.setIamPolicy (Total Keys: 12)
- resources.projects.resources.locations.resources.serviceConnectPolicies.methods.testIamPermissions (Total Keys: 12)

The following keys were added:
- resources.projects.resources.locations.resources.connectionPolicies.methods.getIamPolicy (Total Keys: 14)
- resources.projects.resources.locations.resources.connectionPolicies.methods.setIamPolicy (Total Keys: 12)
- resources.projects.resources.locations.resources.connectionPolicies.methods.testIamPermissions (Total Keys: 12)

Author: yoshi-automation