chore(deps): update terraform linode to v2.26.0 (#6)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [linode](https://registry.terraform.io/providers/linode/linode)
([source](https://github.com/linode/terraform-provider-linode)) |
required_provider | minor | `2.25.0` -> `2.26.0` |

---

### Release Notes

<details>
<summary>linode/terraform-provider-linode (linode)</summary>

###
[`v2.26.0`](https://github.com/linode/terraform-provider-linode/releases/tag/v2.26.0)

[Compare
Source](https://github.com/linode/terraform-provider-linode/compare/v2.25.0...v2.26.0)

<!-- Release notes generated using configuration in .github/release.yml
at main -->

##### What's Changed

##### 📋 New Projects

- Image Service Gen. 2 by
[@&#8203;yec-akamai](https://github.com/yec-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1531](https://github.com/linode/terraform-provider-linode/pull/1531)

##### 🚀 New Features

- Support tags in node pools nested in `linode_lke_cluster` by
[@&#8203;zliang-akamai](https://github.com/zliang-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1530](https://github.com/linode/terraform-provider-linode/pull/1530)

##### 🐛 Bug Fixes

- Resolved createTempKeys failure when bucket is deleted by
[@&#8203;ezilber-akamai](https://github.com/ezilber-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1524](https://github.com/linode/terraform-provider-linode/pull/1524)
- Fix flatten image panic when error happens in image creation by
[@&#8203;zliang-akamai](https://github.com/zliang-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1543](https://github.com/linode/terraform-provider-linode/pull/1543)
- Handle unknown values in `objkey`'s config validate function by
[@&#8203;zliang-akamai](https://github.com/zliang-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1545](https://github.com/linode/terraform-provider-linode/pull/1545)
- Fix multiple issues in `linode_object_storage_bucket` and
`linode_object_storage_key` resources by
[@&#8203;zliang-akamai](https://github.com/zliang-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1547](https://github.com/linode/terraform-provider-linode/pull/1547)

##### 💡 Improvements

- Added missing `placement_group` field to `linode_instances` data
source by [@&#8203;ezilber-akamai](https://github.com/ezilber-akamai)
in
[https://github.com/linode/terraform-provider-linode/pull/1529](https://github.com/linode/terraform-provider-linode/pull/1529)
- Refactor `parseLKEAttributes` function and reduce size of LKE
acceptance test instances by
[@&#8203;zliang-akamai](https://github.com/zliang-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1546](https://github.com/linode/terraform-provider-linode/pull/1546)

##### 🧪 Testing Improvements

- Fix TestAccResourceInstance_privateImage integration test by
[@&#8203;yec-akamai](https://github.com/yec-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1555](https://github.com/linode/terraform-provider-linode/pull/1555)

- Add RegionType to test region helper by
[@&#8203;ykim-1](https://github.com/ykim-1) in
[https://github.com/linode/terraform-provider-linode/pull/1548](https://github.com/linode/terraform-provider-linode/pull/1548)

##### ⚙️ Repo/CI Improvements

- Add workflow job to verify registry publication after release by
[@&#8203;zliang-akamai](https://github.com/zliang-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1527](https://github.com/linode/terraform-provider-linode/pull/1527)

##### 📖 Documentation

- Add deprecation warning to cluster attributes by
[@&#8203;zliang-akamai](https://github.com/zliang-akamai) in
[https://github.com/linode/terraform-provider-linode/pull/1534](https://github.com/linode/terraform-provider-linode/pull/1534)

##### 📦 Dependency Updates

- build(deps): bump golang.org/x/sync from 0.7.0 to 0.8.0 by
[@&#8203;dependabot](https://github.com/dependabot) in
[https://github.com/linode/terraform-provider-linode/pull/1535](https://github.com/linode/terraform-provider-linode/pull/1535)
- build(deps): bump github.com/go-resty/resty/v2 from 2.13.1 to 2.14.0
by [@&#8203;dependabot](https://github.com/dependabot) in
[https://github.com/linode/terraform-provider-linode/pull/1538](https://github.com/linode/terraform-provider-linode/pull/1538)
- build(deps): bump
github.com/hashicorp/terraform-plugin-framework-timetypes from 0.4.0 to
0.5.0 by [@&#8203;dependabot](https://github.com/dependabot) in
[https://github.com/linode/terraform-provider-linode/pull/1539](https://github.com/linode/terraform-provider-linode/pull/1539)
- build(deps): bump golang.org/x/net from 0.27.0 to 0.28.0 by
[@&#8203;dependabot](https://github.com/dependabot) in
[https://github.com/linode/terraform-provider-linode/pull/1541](https://github.com/linode/terraform-provider-linode/pull/1541)
- build(deps): bump github.com/hashicorp/terraform-plugin-testing from
1.9.0 to 1.10.0 by [@&#8203;dependabot](https://github.com/dependabot)
in
[https://github.com/linode/terraform-provider-linode/pull/1544](https://github.com/linode/terraform-provider-linode/pull/1544)

**Full Changelog**:
linode/terraform-provider-linode@v2.25.0...v2.26.0

</details>

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terraform/linode/versions.tf

@@ -6,7 +6,7 @@ terraform {
   required_providers {
     linode = {
       source  = "linode/linode"
-      version = "2.25.0"
+      version = "2.26.0"
     }
 
     null = {