Fix object instantiation in `_normalize_inlined()`

[christian-monch]

This commit fixes a problem that was discovered when using linkml-convert to convert JSON to TTL using the schema: https://concepts.inm7.de/s/simpleinput/unreleased.yaml

The original code used a dictionary as the argument to the constructor of a Pydantic class, but should have used the **-operator to convert the dictionary into keyword arguments.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 63.79%. Comparing base (b2206a4) to head (9fdcd41). Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
linkml_runtime/utils/yamlutils.py	0.00%	1 Missing :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #392   +/-   ##
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  Coverage   63.79%   63.79%           
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  Files          63       63           
  Lines        8938     8938           
  Branches     2584     2584           
=======================================
  Hits         5702     5702           
  Misses       2629     2629           
  Partials      607      607           

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[amc-corey-cox]

@christian-monch I have moved the work on this PR into the repo branch https://github.com/linkml/linkml-runtime/tree/fix-normalize-inlined . If you would like to continue this work please re-open the PR on the mono-repo after the merge from that branch. We'll lift it over for you so it should take less effort.