chore(deps): update psutil requirement from <8,>=6.0.0 to >=7.2.2,<8

Updates the requirements on [psutil](https://github.com/giampaolo/psutil) to permit the latest version.
- [Changelog](https://github.com/giampaolo/psutil/blob/master/docs/changelog.rst)
- [Commits](giampaolo/psutil@v6.0.0...v7.2.2)

---
updated-dependencies:
- dependency-name: psutil
  dependency-version: 7.2.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements/testing.txt

@@ -7,7 +7,7 @@ pytest-asyncio<2  # for async
 pytest-cov>=4,<7.1.0; python_version < "3.9"
 pytest-cov>=7.1.0,<8; python_version >= "3.9"
 click==8.0.4  # black is affected by https://github.com/pallets/click/issues/2225
-psutil>=6.0.0,<8
+psutil>=7.2.2,<8
 # cryptography 46+ dropped PyPy 3.10 wheels; pin to <46 for PyPy 3.10 only
 cryptography<46; implementation_name == "pypy" and python_version == "3.10"
 #  used only under slack_sdk/*_store