chore(security): Increase hsts period

Update the security config to use recommended HSTS period: 1yr

[Note]
- Apply after verifying nothing breaks on site.

[Docs]
See HSTS MDN docs:
https://developer.mozilla.org/en-US/docs/Web/Security/Practical_implementation_guides/TLS#http_strict_transport_security_implementation

src/config/settings/common/security.py

@@ -21,8 +21,7 @@
 # ========================= #
 # Tell browser to load your site over HTTPS only.
 # Note: Browsers will refuse to allow users to bypass insecure warnings to connect.
-# TODO(apexDev37): Update `SECURE_HSTS_SECONDS` to recommended minimum after testing nothing breaks.
-SECURE_HSTS_SECONDS = 3600
+SECURE_HSTS_SECONDS = 31536000
 SECURE_HSTS_INCLUDE_SUBDOMAINS = True
 SECURE_HSTS_PRELOAD = True