fix: resolve conflicts with main

[Ahmad-mtos]

[!IMPORTANT] Resolve conflicts with main by updating submodule paths and commits, and resetting the changelog.

• Submodules:
  • Reorder submodules in .gitmodules to place code-interpreter/vendor/cohere-ai/cohere-terrarium first.
  • Update sdks/node-sdk submodule to commit 6cb742b.
  • Update sdks/python-sdk submodule to commit 7f9bc0c.
• Changelog:
  • Reset CHANGELOG.md to a template format with a placeholder for future updates.

^{This description was created by for bb191954fc6d5874741df6f1ebb2e23a0d6faa24. It will automatically update as commits are pushed.}