Provide client specific scope,grant_type and empty secret code options to get IMS token in the spacecat-shared-ims-client package

[sudo-buddy]

Is your feature request related to a problem? Please describe.
Right now the function getServiceAccessToken() does not have options to send different grant_type, scope and no client_code, which we need for Adobe Analytics API access.

Describe the solution you'd like
The function getServiceAccessToken at

spacecat-shared/packages/spacecat-shared-ims-client/src/clients/ims-client.js

Line 183 in 3130218

async getServiceAccessToken() {

should support to pass user specific scope, grant_type and no code.

Describe alternatives you've considered
May be an override function to getServiceAccessToken, where user can pass scope and grant_type and node client_code.

Additional context
Add any other context or screenshots about the feature request here.