fix: Use account locale when generating PDF FAQs (#12491)

## Linear Link:

https://linear.app/chatwoot/issue/CW-5636/pdf-faqs-captain-generates-faqs-in-the-english-only

## Description
PDF Faqs should be generated in the same language as set in account  


## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)

## How Has This Been Tested?

This has been tested via UI, by setting account language to arabic and
upload the pdf for faq generation (pdf content in Hindi)
<img width="1045" height="1085" alt="image"
src="https://github.com/user-attachments/assets/10385181-578e-4933-afc4-4609a6abcec8"
/>


## Checklist:

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

enterprise/app/jobs/captain/documents/response_builder_job.rb

@@ -33,7 +33,8 @@ class Captain::Documents::ResponseBuilderJob < ApplicationJob
     Captain::Llm::PaginatedFaqGeneratorService.new(
       document,
       pages_per_chunk: options[:pages_per_chunk],
-      max_pages: options[:max_pages]
+      max_pages: options[:max_pages],
+      language: document.account.locale_english_name
     )
   end