fix(deps): update module github.com/packethost/packngo to v0.31.0 (#499)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[github.com/packethost/packngo](https://togithub.com/packethost/packngo)
| `v0.30.0` -> `v0.31.0` |
[![age](https://developer.mend.io/api/mc/badges/age/go/github.com%2fpackethost%2fpackngo/v0.31.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/go/github.com%2fpackethost%2fpackngo/v0.31.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/go/github.com%2fpackethost%2fpackngo/v0.30.0/v0.31.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/go/github.com%2fpackethost%2fpackngo/v0.30.0/v0.31.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>packethost/packngo (github.com/packethost/packngo)</summary>

###
[`v0.31.0`](https://togithub.com/packethost/packngo/releases/tag/v0.31.0)

[Compare
Source](https://togithub.com/packethost/packngo/compare/v0.30.0...v0.31.0)

This release officially deprecates `packngo` in favor of
[`equinix-sdk-go`](https://togithub.com/equinix/equinix-sdk-go).

</details>

---

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go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/hashicorp/terraform-plugin-docs v0.16.0
 	github.com/hashicorp/terraform-plugin-sdk/v2 v2.31.0
 	github.com/hashicorp/terraform-plugin-testing v1.6.0
-	github.com/packethost/packngo v0.30.0
+	github.com/packethost/packngo v0.31.0
 	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.8.4
 	golang.org/x/exp v0.0.0-20240103183307-be819d1f06fc

go.sum

@@ -533,6 +533,8 @@ github.com/oklog/run v1.0.0 h1:Ru7dDtJNOyC66gQ5dQmaCa0qIsAUFY3sFpK1Xk8igrw=
 github.com/oklog/run v1.0.0/go.mod h1:dlhp/R75TPv97u0XWUtDeV/lRKWPKSdTuV0TZvrmrQA=
 github.com/packethost/packngo v0.30.0 h1:JVeTwbXXETsLTDQncUbYwIFpkOp/xevXrffM2HrFECI=
 github.com/packethost/packngo v0.30.0/go.mod h1:BT/XcdwLVmeMtGPbovnxCpnI1s9ylSE1cs/7pq007NE=
+github.com/packethost/packngo v0.31.0 h1:LLH90ardhULWbagBIc3I3nl2uU75io0a7AwY6hyi0S4=
+github.com/packethost/packngo v0.31.0/go.mod h1:Io6VJqzkiqmIEQbpOjeIw9v8q9PfcTEq8TEY/tMQsfw=
 github.com/pjbgf/sha1cd v0.3.0 h1:4D5XXmUUBUl/xQ6IjCkEAbqXskkq/4O7LmGn0AqMDs4=
 github.com/pjbgf/sha1cd v0.3.0/go.mod h1:nZ1rrWOcGJ5uZgEEVL1VUM9iRQiZvWdbZjkKyFzPPsI=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=