Describe the bug

Some of the test files don't have copyright headers included.

Steps to reproduce

Doing spotlessCheck with correct arguments will fail.

Expected behavior

Spot test check should work for all tested projects.

Logs and error messages

.

Reproducer (optional)

No response

Additional context

No response

GraalVM version

GraalVM 25

Operating system

Linux

CPU architecture

AMD64 (x86-64)