Add support for pdf attachments

[markvanaalst]

Description / Motivation

This PR adds support for PDFs in changelog entries

How Has This Been Tested?

Local

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• [ X New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update (non-breaking change; modified files are limited to the /data directory or other markdown files)

Checklist:

• I have read the Contributing guide.
• My code/comments/docs fully adhere to the Code of Conduct.
• My change is a code change.
• My change is a documentation change and there are NO other updates required.
• My change has new or updated images which are stored in the /public/images folder that need to be migrated to Sitecore DAM

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
developer-portal	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 29, 2025 3:19pm

[markvanaalst]

📝 Changed routes:

…g/[product]/[...entry]
(view full size)

Commit 210c28d (https://developer-portal-iqgi42umo-sitecoretechnicalmarketing.vercel.app).