ORC-2053: Use Java Set.of instead of Collections.emptySet

[dongjoon-hyun]

What changes were proposed in this pull request?

This PR aims to use Java 9+ Set.of() API instead of Collections.emptySet() and add a new checkstyle rule to ban Collections.emptySet.

Why are the changes needed?

We had better use Set simply and uniformly.

- import java.util.Collections;
...
- private Set<Integer> filterColumnIds = Collections.emptySet();
+ private Set<Integer> filterColumnIds = Set.of();

Does this PR introduce any user-facing change?

No behavior change.

How was this patch tested?

Pass the CIs.

Was this patch authored or co-authored using generative AI tooling?

No.

[dongjoon-hyun]

Merged to main.