Update dependency golangci/golangci-lint to v2

| datasource  | package                | from    | to     |
| ----------- | ---------------------- | ------- | ------ |
| github-tags | golangci/golangci-lint | v1.64.8 | v2.1.2 |


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

Author: renovate[bot]

Diff for: .github/workflows/lint.yml

@@ -32,7 +32,7 @@ jobs:
       - name: Lint Go
         uses: golangci/golangci-lint-action@55c2c1448f86e01eaae002a5a3a9624417608d84 # v6.5.2
         with:
-          version: v1.64.8 # renovate: datasource=github-tags depName=golangci/golangci-lint
+          version: v2.1.2 # renovate: datasource=github-tags depName=golangci/golangci-lint
 
   actionlint:
     name: Actionlint

Diff for: .pre-commit-config.yaml

@@ -26,7 +26,7 @@ repos:
       - id: fix-byte-order-marker
 
   - repo: https://github.com/golangci/golangci-lint
-    rev: v1.64.8
+    rev: v2.1.2
     hooks:
       - id: golangci-lint-full
 

Diff for: Makefile

@@ -2,7 +2,7 @@ VERSION = 1.4.0
 TAG = $(VERSION)
 PREFIX = nginx/nginx-prometheus-exporter
 # renovate: datasource=github-tags depName=golangci/golangci-lint
-GOLANGCI_LINT_VERSION = v1.64.8
+GOLANGCI_LINT_VERSION = v2.1.2
 
 .DEFAULT_GOAL:=nginx-prometheus-exporter