[pip](deps): Bump psutil from 5.9.7 to 5.9.8 (#51)

Bumps [psutil](https://github.com/giampaolo/psutil) from 5.9.7 to 5.9.8.
- [Changelog](https://github.com/giampaolo/psutil/blob/master/HISTORY.rst)
- [Commits](giampaolo/psutil@release-5.9.7...release-5.9.8)

---
updated-dependencies:
- dependency-name: psutil
  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]

poetry.lock

@@ -13,7 +13,7 @@ uvloop = {markers = "sys_platform != \"win32\"", version = "^0.19.0"}
 winloop = {markers = "sys_platform == \"win32\"", version = "^0.1.0"}
 asyncpg = "^0.29.0"
 discord-ext-menus = {git = "https://github.com/Rapptz/discord-ext-menus", rev = "8686b5d1bbc1d3c862292eb436ab630d6e9c9b53"}
-psutil = "^5.9.7"
+psutil = "^5.9.8"
 pygit2 = "^1.13.3"
 python-dateutil = "^2.8.2"
 click = "^8.1.7"