Bump g4f[openai,webdriver] from 0.3.8.0 to 0.3.9.1

Bumps [g4f[openai,webdriver]](https://github.com/xtekky/gpt4free) from 0.3.8.0 to 0.3.9.1.
- [Release notes](https://github.com/xtekky/gpt4free/releases)
- [Commits](xtekky/gpt4free@0.3.8.0...0.3.9.1)

---
updated-dependencies:
- dependency-name: g4f[openai,webdriver]
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -1,6 +1,6 @@
 fastapi==0.115.6
 fastapi-utils==0.8.0
-g4f[openai,webdriver]==0.3.8.0
+g4f[openai,webdriver]==0.3.9.1
 pydantic-settings==2.6.1
 pydantic==2.10.3
 hypercorn==0.17.3