Update db_copilot_with_rag.ipynb

[iamramengirl]

Removed apostrophes from the instruct_template because they cause deployment issues when the full command is contatenated and issued.

Description

Removed the single quote characters from the instruct_template because it is causing deployment issues when the full command is concatenated and issued.

Checklist

• [X] I have read the contribution guidelines.
  • General
  • SDK
  • CLI
• [X] I have coordinated with the docs team ([email protected]) if this PR deletes files or changes any file names or file extensions.
• [X] Pull request includes test coverage for the included changes.
• [X] This notebook or file is added to the CODEOWNERS file, pointing to the author or the author's team.