support endPort on network policy resource

[tostieme]

Description

Acceptance tests

• Have you added an acceptance test for the functionality being added?
• Have you run the acceptance tests on this branch?

Output from acceptance testing:

$ make testacc TESTARGS='-run=TestAccKubernetesNetworkPolicyV1_basic'
==> Checking that code complies with gofmt requirements...
go vet ./...
TF_ACC=1 go test "/Users/tostieme/go/src/github.com/hashicorp/terraform-provider-kubernetes/kubernetes" -v -vet=off -run=TestAccKubernetesNetworkPolicyV1_basic -parallel 8 -timeout 3h
=== RUN   TestAccKubernetesNetworkPolicyV1_basic
=== PAUSE TestAccKubernetesNetworkPolicyV1_basic
=== CONT  TestAccKubernetesNetworkPolicyV1_basic
--- PASS: TestAccKubernetesNetworkPolicyV1_basic (13.17s)
PASS
ok      github.com/hashicorp/terraform-provider-kubernetes/kubernetes      13.849s

Release Note

Release note for CHANGELOG:

`resource/resource_kubernetes_network_policy_v1`: add support for `end_port`

References

Closes #2455

Community Note

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