Add a content page on how to achieve CI with Ballerina with different technologies

Description

$subject

There is a section under the Cloud Native page that covers configuring GitHub Actions for Ballerina. However, the Ballerina website lacks a dedicated page on configuring Continuous Integration (CI) pipelines for building and testing Ballerina projects. For example, the Rust documentation includes a dedicated page that provides guidance on CI setup. This page should include sample CI configuration files for various CI technologies, such as GitHub Actions, CircleCI, Jenkins, and more, to guide users through setting up and automating their Ballerina workflows.

Related website/documentation area

Add/Uncomment the relevant area label out of the following.

Describe the problem(s)

A detailed description of the purpose of this new feature.

Describe your solution(s)

A detailed description of how this new feature will solve the problem described above.

Related issue(s) (optional)

Any related issues such as sub tasks and issues reported in other repositories (e.g., component repositories), similar problems, etc.

Suggested label(s) (optional)

Optional comma-separated list of suggested labels. Non committers can’t assign labels to issues, and thereby, this will help issue creators who are not a committer to suggest possible labels.

Suggested assignee(s) (optional)

Optional comma-separated list of suggested team members who should attend the issue. Non committers can’t assign issues to assignees, and thereby, this will help issue creators who are not a committer to suggest possible assignees.

ballerina-platform / ballerina-dev-website