chore: Upgrade to golangci-lint v2 (#7236)

Signed-off-by: Manuel Rüger <manuel@rueg.eu>

.golangci.yml

@@ -1,13 +1,30 @@
-run:
-  timeout: 5m
+version: "2"
 linters:
-  disable-all: true
+  default: none
   enable:
     - govet
     - ineffassign
     - staticcheck
-    - typecheck
-    - whitespace
-    - unused
-    - gofmt
     - unconvert
+    - unused
+    - whitespace
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gofmt
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$