fix(immich): correct LibRaw clone URL to official upstream

[DenislavDenev]

✍️ Description

• Immich installation fails during the LibRaw compilation stage due to an incorrect clone URL: https://github.com/libraw/libraw.git

• GitHub returns HTTP 500 and git exits with code 128.

• The correct upstream repository is: https://github.com/LibRaw/LibRaw.git

• This PR updates the clone URL to the official LibRaw repository.

• Tested by reinstalling the Immich container from scratch.

🔗 Related Issue

N/A
Fixes #

✅ Prerequisites (X in brackets)

• Self-review completed – Code follows project standards.
• Tested thoroughly – Changes work as expected.
• No security risks – No hardcoded secrets, unnecessary privilege escalations, or permission issues.

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🛠️ Type of Change (X in brackets)

• 🐞 Bug fix – Resolves an issue without breaking functionality.
• ✨ New feature – Adds new, non-breaking functionality.
• 💥 Breaking change – Alters existing functionality in a way that may require updates.
• 🆕 New script – A fully functional and tested script or script set.
• 🌍 Website update – Changes to website-related JSON files or metadata.
• 🔧 Refactoring / Code Cleanup – Improves readability or maintainability without changing functionality.
• 📝 Documentation update – Changes to README, AppName.md, CONTRIBUTING.md, or other docs.

[vhsdream]

@DenislavDenev Are you saying that it doesn't automatically redirect for you? Weird.

But let's make the change. Thanks for the PR.