Finished implementing update organization in the organization controller

[ikennaumeh]

Description

Closes #408

Changes proposed

What were you told to do?

Develop a PUT endpoint to update an existing organization.

What did you do?

1. Added PUT /api/v1/organisations/{orgId} endpoint to Organization Controller
2. Created a command and a command handler in the Hng.Application project to handle the interface and logic of the endpoint
3. Added unit tests for the command handler in the Hng.Application.Test project

Check List (Check all the applicable boxes)

🚨Please review the contribution guideline for this repository.

• My code follows the code style of this project.
• This PR does not contain plagiarized content.
• The title and description of the PR is clear and explains the approach.
• I am making a pull request against the dev branch (left side).
• My commit messages styles matches our requested structure.
• My code additions will fail neither code linting checks nor unit test.
• I am only making changes to files I was requested to.

Screenshots/Videos

• Successful requests returns 200 status code

• Wrong user authorization/bearer token returns 403 status code

• No organization with the id returns 404 status code

• All tests pass

[incredible-phoenix246]

Restore this file

[ikennaumeh]

Done