build: bump to angualr 19

[cipchk]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 77.27273% with 5 lines in your changes missing coverage. Please review.

Project coverage is 71.42%. Comparing base (5ec7f28) to head (84bcebd).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
lib/src/highlight-js.config.ts	0.00%	3 Missing ⚠️
lib/src/highlight-js.directive.ts	89.47%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #28      +/-   ##
==========================================
- Coverage   73.01%   71.42%   -1.59%     
==========================================
  Files           3        3              
  Lines          63       70       +7     
  Branches       12       12              
==========================================
+ Hits           46       50       +4     
- Misses         13       16       +3     
  Partials        4        4              

Flag	Coverage Δ
unittests	71.42% <77.27%> (-1.59%)	⬇️

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