update to Go v1.25 and golangci-lint v2.4.0

Author: turbolent

.github/workflows/ci.yml

@@ -1,7 +1,7 @@
 name: CI
 
 env:
-  GO_VERSION: "1.23"
+  GO_VERSION: "1.25"
 
 on:
   pull_request:
@@ -32,8 +32,8 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Run golangci-lint
-        uses: golangci/golangci-lint-action@v6
+        uses: golangci/golangci-lint-action@v8
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.63.4
+          version: v2.4
           args: --timeout=10m

.golangci.toml

@@ -1,4 +1,6 @@
-[linters]
+version = '2'
+
+[formatters]
 enable = [
     "goimports",
 ]