1.18.x linter cleanup (kgateway-dev#10628)

.golangci.yaml

@@ -79,24 +79,13 @@ run:
   # If we find that the job is timing out, we can explore ways to make this job run faster, or increase the timeout.
   timeout: 10m
 
-  skip-dirs:
-    # don't lint ruleguard files
-    - test/rules
-
-    # don't lint gomock intermediate files
-    - 'gomock_reflect_\d*'
-
 # output configuration options
 output:
-  # Format: colored-line-number|line-number|json|colored-tab|tab|checkstyle|code-climate|junit-xml|github-actions|teamcity
-  #
-  # Multiple can be specified by separating them by comma, output can be provided
-  # for each of them by separating format name and path by colon symbol.
-  # Output path can be either `stdout`, `stderr` or path to the file to write to.
-  # Example: "checkstyle:report.xml,json:stdout,colored-line-number"
-  #
-  # Default: colored-line-number
-  format: colored-line-number
+  # Use default format
+  # Default:
+  #   formats:
+  #     - format: colored-line-number
+  #       path: stdout
 
   # Print lines of code with issue.
   print-issued-lines: true

changelog/v1.18.8/linter-yaml-changes.yaml

@@ -0,0 +1,7 @@
+changelog:
+  - type: NON_USER_FACING
+    resolvesIssue: false
+    description: >-
+      Updates for golangci-lint-action  breaking changes in `6.5.0`
+      skipCI-kube-tests:true
+      skipCI-docs-build:true