feat(task-service): Added patch api in task service to update any task.

[Dinu-1099]

Description

Added patch api in task service to update any tasks. Added permission for updateTask.

Fixes GH-2032

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Intermediate change (work in progress)

Checklist:

• [x] Performed a self-review of my own code
• [x] npm test passes on your machine
• [x] New tests added or existing tests modified to cover all changes
• [ ] Code conforms with the style guide
• [ ] API Documentation in code was updated
• [ ] Any dependent changes have been merged and published in downstream modules