static byte[] hpkeSuiteId(byte[] kemId, byte[] kdfId, byte[] aeadId)
      throws GeneralSecurityException {
    return Bytes.concat(HPKE, kemId, kdfId, aeadId);
  }
Generates HPKE suite id from {@code kemId}, {@code kdfId}, and {@code aeadId} according to the
definition in https://www.rfc-editor.org/rfc/rfc9180.html#section-5.1-8. Used for any non-KEM
suite id.

@throws GeneralSecurityException when byte concatenation fails.
java_src/src/main/java/com/google/crypto/tink/hybrid/internal/HpkeUtil.java