build(backend): separate dev dependencies from main

[aadil96]

No description provided.

[what-the-diff]

PR Summary

• Dockerfile update for efficient syncing
  The Dockerfile, a vital script used for creating our product's environment, has been updated. An included change is the addition of the --no-dev flag in some commands. This adjustment prevents non-essential, development-related elements from being installed, resulting in a more streamlined environment for our product.

• Simplification of pyproject.toml
  We've decluttered the pyproject.toml file by removing a few details that were related to testing and development (like httpx, pytest, etc.) from the main dependencies. This change makes it more straightforward and makes our codebase easier to manage.

• Improved dependency management in pyproject.toml
  To make the handling of our product's dependencies more efficient, we've added a new dependency-groups section. This modification allows us to manage development-specific dependencies in a separate group termed dev, thereby keeping our main dependencies clean and uncomplicated.

[github-actions]

Package	Line Rate	Complexity	Health
.	99%	0	✔
Summary	99% (136 / 138)	0	✔