Bump oss2 from 2.18.4 to 2.18.6

Bumps [oss2](https://github.com/aliyun/aliyun-oss-python-sdk) from 2.18.4 to 2.18.6.
- [Release notes](https://github.com/aliyun/aliyun-oss-python-sdk/releases)
- [Changelog](https://github.com/aliyun/aliyun-oss-python-sdk/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/aliyun/aliyun-oss-python-sdk/commits)

---
updated-dependencies:
- dependency-name: oss2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

setup.cfg

@@ -27,7 +27,7 @@ package_dir=
 packages = find:
 install_requires=
     fsspec>=2023.9.2
-    oss2==2.18.4
+    oss2==2.18.6
     aiooss2>=0.2.11
 
 [options.extras_require]