### Elasticsearch Version

master

### Installed Plugins

N/A

### Java Version

_bundled_

### OS Version

N/A

### Problem Description

@arteam [observed](https://github.com/elastic/elasticsearch/pull/83221/files#r795474431) that `static record` is redundant, records are apparently implicitly static. I think we should make sure that Checkstyle picks this up rather than needing human involvement.

### Steps to Reproduce

Mark a record declaration as `static` and observe that `./gradlew precommit` still passes.

### Logs (if relevant)

_No response_
server/src/main/java/org/elasticsearch/action/datastreams/GetDataStreamAction.java
}
        @Override
        public int hashCode() {
            int result = Objects.hash(indicesOptions);
            result = 31 * result + Arrays.hashCode(names);
            return result;
        }
        @Override
        public String[] indices() {
            return names;
        }
        @Override
        public IndicesOptions indicesOptions() {
            return indicesOptions;
        }
        public Request indicesOptions(IndicesOptions indicesOptions) {
            this.indicesOptions = indicesOptions;
            return this;
        }
        @Override
        public boolean includeDataStreams() {
            return true;
        }
        @Override
        public IndicesRequest indices(String... indices) {
            this.names = indices;
            return this;
        }
    }
    public static class Response extends ActionResponse implements ToXContentObject {