chore: update praw requirement from >=7.8.1 to >=7.8.2

Updates the requirements on [praw](https://github.com/praw-dev/praw) to permit the latest version.
- [Release notes](https://github.com/praw-dev/praw/releases)
- [Changelog](https://github.com/praw-dev/praw/blob/v7.8.2/CHANGES.rst)
- [Commits](praw-dev/praw@v7.8.1...v7.8.2)

---
updated-dependencies:
- dependency-name: praw
  dependency-version: 7.8.2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -1 +1 @@
-praw>=7.8.1
+praw>=7.8.2