log for DelNetworkReply now differentiates between IPv4 and IPv6 addr…

[zachdorame]

What type of PR is this?

bug

Which issue does this PR fix:
#2741

What does this PR do / Why do we need it:
Fixes log statement for DelNetworkReply to differentiate between IPv4 and IPv6 addresses. Also added punctuation to AddNetworkReply log statement so that both logging statements follow a similar format

If an issue # is not available please add repro steps and logs from IPAMD/CNI showing the issue:
N/A

Testing done on this change:

Below are ipamd.log logs showing the modified log statements

{"level":"debug","ts":"2024-01-04T23:57:49.484Z","caller":"rpc/rpc.pb.go:713","msg":"VPC V6 CIDR 2600:1f14:324e:1700::/56"}
{"level":"info","ts":"2024-01-04T23:57:49.484Z","caller":"rpc/rpc.pb.go:713","msg":"Send AddNetworkReply: IPv4Addr: , IPv6Addr: 2600:1f14:324e:1700:22df::1, DeviceNumber: 0, err: <nil>"}
{"level":"info","ts":"2024-01-04T23:57:58.316Z","caller":"rpc/rpc.pb.go:731","msg":"Received DelNetwork for Sandbox 65edae24ac84421bf117c5d1138b62b758c66b2d606da033caf60ca3c880d448"}
{"level":"debug","ts":"2024-01-04T23:57:58.316Z","caller":"rpc/rpc.pb.go:731","msg":"DelNetworkRequest: K8S_POD_NAME:\"nginx-deployment-cd5968d5b-cq8vq\" K8S_POD_NAMESPACE:\"default\" K8S_POD_INFRA_CONTAINER_ID:\"65edae24ac84421bf117c5d1138b62b758c66b2d606da033caf60ca3c880d448\" Reason:\"PodDeleted\" ContainerID:\"65edae24ac84421bf117c5d1138b62b758c66b2d606da033caf60ca3c880d448\" IfName:\"eth0\" NetworkName:\"aws-cni\""}
{"level":"debug","ts":"2024-01-04T23:57:58.316Z","caller":"ipamd/rpc_handler.go:260","msg":"UnassignPodIPAddress: IP address pool stats: total 281474976710656, assigned 2, sandbox aws-cni/65edae24ac84421bf117c5d1138b62b758c66b2d606da033caf60ca3c880d448/eth0"}
{"level":"info","ts":"2024-01-04T23:57:58.316Z","caller":"datastore/data_store.go:1111","msg":"unassignPodIPAddressUnsafe: Unassign IP 2600:1f14:324e:1700:22df::1 from sandbox aws-cni/65edae24ac84421bf117c5d1138b62b758c66b2d606da033caf60ca3c880d448/eth0"}{"level":"info","ts":"2024-01-04T23:57:58.317Z","caller":"ipamd/rpc_handler.go:260","msg":"UnassignPodIPAddress: sandbox aws-cni/65edae24ac84421bf117c5d1138b62b758c66b2d606da033caf60ca3c880d448/eth0's ipAddr 2600:1f14:324e:1700:22df::1, DeviceNumber 0"}
{"level":"info","ts":"2024-01-04T23:57:58.317Z","caller":"rpc/rpc.pb.go:731","msg":"Send DelNetworkReply: IPv4Addr: , IPv6Addr: 2600:1f14:324e:1700:22df::1, DeviceNumber: 0, err: <nil>"}

Will this PR introduce any new dependencies?:

No
Will this break upgrades or downgrades? Has updating a running cluster been tested?:
N/A

Does this change require updates to the CNI daemonset config files to work?:

No
Does this PR introduce any user-facing change?:

No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.