fix: Add variable escaping in Makefile

[philprime]

📜 Description

Fixes the variable escaping of awk in the Makefile

💡 Motivation and Context

Running make init

💚 How did you test it?

1. Run make init without the changes
2. File .clang-format-version contains clang-format version 19.1.6
3. Applying changes of PR
4. Run make init again
5. File .clang-format-version contains 19.1.6

📝 Checklist

You have to check all boxes before merging:

• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

#skip-changelog

[philipphofmann]

LGTM