Set standard permissions for temporary files

[charliermarsh]

Summary

Closes #5435.

Test Plan

Before:

❯ ls -l .venv/lib/python3.12/site-packages/httpx-0.27.0.dist-info
total 48
-rw-------  1 crmarsh  staff     2 Jul 25 14:21 INSTALLER
-rw-r--r--  1 crmarsh  staff  7184 Jul 23 23:20 METADATA
-rw-r--r--  1 crmarsh  staff  2541 Jul 25 14:21 RECORD
-rw-------  1 crmarsh  staff     0 Jul 25 14:21 REQUESTED
-rw-r--r--  1 crmarsh  staff    87 Jul 23 23:20 WHEEL
-rw-r--r--  1 crmarsh  staff    37 Jul 23 23:20 entry_points.txt
drwxr-xr-x  3 crmarsh  staff    96 Jul 25 14:21 licenses

After:

❯ ls -l .venv/lib/python3.12/site-packages/flask-3.0.3.dist-info/
total 48
-rw-r--r--  1 crmarsh  staff     2 Jul 25 14:21 INSTALLER
-rw-r--r--  1 crmarsh  staff  1475 Jul 25 14:21 LICENSE.txt
-rw-r--r--  1 crmarsh  staff  3177 Jul 25 14:21 METADATA
-rw-r--r--  1 crmarsh  staff  2565 Jul 25 14:21 RECORD
-rw-r--r--  1 crmarsh  staff     0 Jul 25 14:21 REQUESTED
-rw-r--r--  1 crmarsh  staff    81 Jul 25 14:21 WHEEL
-rw-r--r--  1 crmarsh  staff    40 Jul 25 14:21 entry_points.txt