Add missing newlines at the end of two SQL files

Michael Paquier <michael@paquier.xyz>

Commit: 027124a872d7b5dfddc69590af42f626b1727dba
Author: Michael Paquier <michael@paquier.xyz>
Date: 2024-11-03T10:42:51Z
Releases: 18.0
Add missing newlines at the end of two SQL files

arrays.sql was already missing it before 49d6c7d8daba, and I have just
noticed it thanks to this commit.  The second one in test_slru has been
introduced by 768a9fd5535f.

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