Bump psycopg2-binary from 2.9.7 to 2.9.8 in /requirements (#1267)

Bumps [psycopg2-binary](https://github.com/psycopg/psycopg2) from 2.9.7 to 2.9.8.
- [Changelog](https://github.com/psycopg/psycopg2/blob/master/NEWS)
- [Commits](psycopg/psycopg2@2.9.7...2.9.8)

---
updated-dependencies:
- dependency-name: psycopg2-binary
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements/postgres.txt

@@ -1,4 +1,4 @@
 # DEV: Replace this with `psycopg[binary]` when the minimum required Django version is
 #      4.2 or higher, as this is likely to be deprecated in the future
 #      (see https://docs.djangoproject.com/en/4.2/releases/4.2/#psycopg-3-support)
-psycopg2-binary==2.9.7
+psycopg2-binary==2.9.8