fix(buildParams) array values without [] suffixed keys are not transformed to LHS format

[Edsol]

the original code needed this structure (key as a string with square brackets):

{
    "assignees[]": [
        assignId
    ]
};

to make the call correctly as https://api.clickup.com/api/v2/team/{team_Id}/task?assignees[]=XXXX.

I refactored the function to be able to use the json structure correctly, like:

{
    assignees: [
        assignId
    ]
};

[ComfortablyCoding]

LGTM! Thanks.