v1.2.1: Merge pull request #6 from RndmCodeGuy20/LC-04-unit-tests

This commit adds a GitHub Actions workflow to automate the retrieval of the daily LeetCode problem. Three jobs are defined in the workflow:

1. build-and-setup-node:

   • Checks out the repository.
   • Sets up Node.js environment (Node.js version 16).
   • Installs project dependencies using npm ci.

2. get-problem:

   • Depends on the completion of the build-and-setup-node job.
   • Sets up Node.js environment (Node.js version 16).
   • Runs the script to fetch the daily LeetCode problem.

3. commit:

   • Depends on the completion of the get-problem job.
   • Checks out the repository.
   • Configures Git user details.
   • Commits the changes with a standardized message indicating the addition of today's daily LeetCode question.
   • Pushes the changes back to the repository.

This workflow is triggered daily at 1:00 AM UTC, ensuring the automated retrieval of the LeetCode problem and the documentation of the change in the repository.