[Feature]: Add Dependabot configuration for automated dependency updates

[rohitkumarnaidu]

Feature description

Implement automated dependency updates via Dependabot.

Problem it solves

Manually tracking, identifying, and updating dependencies is incredibly tedious and leaves the project vulnerable if security patches are missed.

Proposed solution

Adding a simple .github/dependabot.yml configuration will automate the process, scanning for outdated packages and generating PRs automatically. I can easily set this up for you. Could you assign this to me and apply the ELUSOC label?

Alternatives considered

Using Renovate bot is another option, but Dependabot is natively integrated into GitHub and easier to set up.

Additional context

Thanks for the awesome project!