🚑️ Fix parsing logic for named parameters in Jobs API 2.1 Asset-based launch

[renardeinside]

Proposed changes

Addresses #752

Types of changes

What types of changes does your code introduce to dbx?
Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

[codecov]

Codecov Report

Merging #771 (94bbbc5) into main (b0dfd87) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #771   +/-   ##
=======================================
  Coverage   93.69%   93.69%           
=======================================
  Files          98       98           
  Lines        3840     3840           
  Branches      483      483           
=======================================
  Hits         3598     3598           
  Misses        184      184           
  Partials       58       58           

Impacted Files	Coverage Δ
dbx/__init__.py	100.00% <100.00%> (ø)
dbx/models/workflow/v2dot1/_parameters.py	100.00% <100.00%> (ø)