Update buildkite plugin plugin-linter to v3.2.0

Author: renovate[bot]

.buildkite/pipeline.yml

@@ -6,7 +6,7 @@ steps:
 
   - label: ":sparkles: Stable linting"
     plugins:
-      - plugin-linter#v3.1.0:
+      - plugin-linter#v3.2.0:
           id: plugin-linter
 
   - label: ":bash: Tests"