chore(deps): update dependency golangci/golangci-lint to v2.6.2 (#132)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[golangci/golangci-lint](https://redirect.github.com/golangci/golangci-lint)
| patch | `v2.6.1` -> `v2.6.2` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>golangci/golangci-lint (golangci/golangci-lint)</summary>

###
[`v2.6.2`](https://redirect.github.com/golangci/golangci-lint/blob/HEAD/CHANGELOG.md#v262)

[Compare
Source](https://redirect.github.com/golangci/golangci-lint/compare/v2.6.1...v2.6.2)

*Released on 2025-11-14*

1. Bug fixes
   - `fmt` command with symlinks
   - use file depending on build configuration to invalidate cache
2. Linters bug fixes
   - `testableexamples`: from 1.0.0 to 1.0.1
   - `testpackage`: from 1.1.1 to 1.1.2

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0Mi4xOS4wIiwidXBkYXRlZEluVmVyIjoiNDIuMTkuMCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiYnVpbGQ6ZGVwcyJdfQ==-->

Author: pjbgf

hack/base.mk

@@ -1,5 +1,5 @@
 # renovate: datasource=github-tags depName=golangci/golangci-lint
-GOLANGCI_VERSION ?= v2.6.1
+GOLANGCI_VERSION ?= v2.6.2
 # renovate: datasource=github-tags depName=protocolbuffers/protobuf
 PROTOC_VERSION ?= v33.1
 TOOLS_BIN := $(shell mkdir -p build/tools && realpath build/tools)