Add needed .gitignore files in back branches.
v14 and earlier use generated test files, which require being
.gitignore'd to avoid git complaints when testing in-tree.
Security: CVE-2024-10979
Branch
------
REL_13_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/6bccd7b037d09b91ce272c68f43705e2fecd4cca
Modified Files
--------------
src/pl/plperl/expected/.gitignore | 1 +
src/pl/plperl/sql/.gitignore | 1 +
2 files changed, 2 insertions(+)