feat: locale agnostic cloudflare captcha solver

[subediparas5]

Proposed change

This PR makes Cloudflare challenge solving language-independent for both synchronous and asynchronous stealth sessions. Fixes #411.

The solver previously relied on English text such as <title>Just a moment...</title> and Verifying you are human.. Localized challenges, such as French pages using <title>Un instant…</title>, could therefore be incorrectly treated as solved before the checkbox was clicked.

The updated implementation:

• Uses Scrapling’s existing Cloudflare challenge detector instead of translated page text.
• Locates non-embedded Turnstile widgets through input[name="cf-turnstile-response"].
• Clicks the checkbox using the widget container’s bounding box.
• Preserves existing embedded Turnstile behavior.
• Applies the fix to both sync and async solvers.
• Includes a regression test for a localized challenge page.

Type of change:

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests
• Add or change doctests? -- Note: Please avoid changing both code and tests in a single pull request.
• Documentation change?

Additional information

• This PR fixes or closes an issue: fixes #<ISSUE_NUMBER>
• This PR is related to an issue: #
• Link to documentation pull request: **

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• All new Python files are placed inside an existing directory.
• All filenames are in all lowercase characters with no spaces or dashes.
• All functions and variable names follow Python naming conventions.
• All function parameters and return values are annotated with Python type hints.
• All functions have doc-strings.

[subediparas5]

@D4Vinci can you look into this, I am using scrapling on one of my project and this is impacting there. Currently I have monkeypatched this but it would be better if i didnt need monkeypatching.

[D4Vinci]

@subediparas5 Can you share a list of websites with the problem?

[subediparas5]

https://www.laredoute.fr/pplp/cat-385755.aspx this is the one @D4Vinci

[D4Vinci]

Sorry for the delay; I had to find some free time to look into this.

This issue is invalid; the website is French, but all Cloudflare sentences are English as they always were. The CAPTCHA and the website title are still English, so I don't know why you are trying to remove them. Below is a screenshot of the current version solving it three times in a row without issues.