Update portalocker requirement from ~=2.7.0 to ~=2.8.2

Updates the requirements on [portalocker](https://github.com/wolph/portalocker) to permit the latest version.
- [Release notes](https://github.com/wolph/portalocker/releases)
- [Changelog](https://github.com/wolph/portalocker/blob/develop/CHANGELOG.rst)
- [Commits](wolph/portalocker@v2.7.0...v2.8.2)

---
updated-dependencies:
- dependency-name: portalocker
  dependency-type: direct:production
...

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

requirements.txt

@@ -93,7 +93,7 @@ parso==0.8.3
 pickleshare==0.7.5
 Pillow~=10.0.0
 pluggy~=1.3.0
-portalocker~=2.7.0
+portalocker~=2.8.2
 prometheus-client==0.17.1
 prompt-toolkit~=3.0.31
 protobuf~=4.24.0