feat: Add CI workflow to run unit tests on each commit

[ravjot07]

Issue:
Currently, there is no CI test setup to execute unit tests for every new commit in the repository.

Solution:
Implemented a GitHub Actions workflow named CI that triggers on pushes and pull requests to the master branch. The workflow includes the following steps:

1. Checkout Repository: Uses actions/checkout@v3 to clone the repository.
2. Set Up Go Environment: Sets up Go environment using actions/setup-go@v4.
3. Cache Go Modules: Caches Go build and module directories to speed up subsequent builds using actions/cache@v3.
4. Install Dependencies: Runs go mod tidy and go mod download to install project dependencies.
5. Install Tools: Installs evcli and cocli using go install.
6. Verify Installations: Checks the installed versions of evcli and cocli to ensure they are correctly installed.
7. Build Project: Compiles the project using go build -v ./....
8. Run Unit Tests: Executes unit tests with coverage using go test ./... -v -cover.

This CI setup ensures that unit tests are automatically executed on every new commit, enhancing code quality and reliability.

Resolves: #7

[ravjot07]

@thomas-fossati @setrofim, could you please review this PR and let me know if any changes are needed? Thanks!

[ravjot07]

@thomas-fossati @setrofim, could you please review this PR and let me know if any changes are needed? Thanks!

@thomas-fossati can i get a review on this one....

[thomas-fossati]

Thanks, @ravjot07 ! LGMT