Get All Project Categories
GET {{baseUrl}}/rest/api/3/projectCategory
Returns all project categories.
Permissions required: Permission to access Jira.
RESPONSES
status: OK
[{"self":"https://your-domain.atlassian.net/rest/api/3/projectCategory/10000","id":"10000","name":"FIRST","description":"First Project Category"},{"self":"https://your-domain.atlassian.net/rest/api/3/projectCategory/10001","id":"10001","name":"SECOND","description":"Second Project Category"}]