feat(deps): update golangci-lint to 2.12.1 (#59)

| datasource  | package                | from   | to     |
| ----------- | ---------------------- | ------ | ------ |
| github-tags | golangci/golangci-lint | 2.11.4 | 2.12.1 |

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.mise.ci.toml

@@ -4,5 +4,5 @@
 [tools]
 go = "1.26.2"
 task = "3.50.0"
-golangci-lint = "2.11.4"
+golangci-lint = "2.12.1"
 neovim = "0.12.2"

.mise.toml

@@ -1,7 +1,7 @@
 [tools]
 go = "1.26.2"
 task = "3.50.0"
-golangci-lint = "2.11.4"
+golangci-lint = "2.12.1"
 goreleaser = "2.15.4"
 pre-commit = "4.6.0"
 python = "3.14"