fix: Adds pagination to Facility linked list API

[aeswibon]

Bug Fix

Proposed Changes

• Adds pagination in linked facilities list API

Associated Issue

• Required by fix: Limit number of facilities a single user can be linked to care_fe#7257

Merge Checklist

• Tests added/fixed
• Update docs in /docs
• Linting Complete
• Any other necessary step

Only PR's with test cases included and passing lint and test pipelines will be reviewed

@coronasafe/care-backend-maintainers @coronasafe/care-backend-admins

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 61.94%. Comparing base (6cb4b3f) to head (1772cef).

Files	Patch %	Lines
care/users/api/viewsets/users.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1911      +/-   ##
==========================================
- Coverage   61.94%   61.94%   -0.01%     
==========================================
  Files         221      221              
  Lines       12168    12169       +1     
  Branches     1735     1735              
==========================================
  Hits         7538     7538              
- Misses       4324     4325       +1     
  Partials      306      306              

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[aeswibon]

@sainak Can you check the PR?