Add resolved_middleware JSON field to Asset Serializer.

[rithviknishad]

Proposed Changes

• Adds a serializer method field: resolved_middleware that returns a JSON of the resolved middleware.

Examples

Associated Issue

• Fixes Asset serializer: Add serializer method field resolved_middleware. #1740

Architecture changes

• Remove this section if not used

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: 5 lines in your changes are missing coverage. Please review.

Comparison is base (8bdbb42) 60.76% compared to head (67f1789) 60.75%.
Report is 1 commits behind head on master.

❗ Current head 67f1789 differs from pull request most recent head 97a8bd6. Consider uploading reports for the commit 97a8bd6 to get more accurate results

Files	Patch %	Lines
care/facility/models/asset.py	37.50%	3 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1741      +/-   ##
==========================================
- Coverage   60.76%   60.75%   -0.01%     
==========================================
  Files         210      210              
  Lines       11531    11546      +15     
  Branches     1642     1649       +7     
==========================================
+ Hits         7007     7015       +8     
- Misses       4283     4288       +5     
- Partials      241      243       +2     

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