feat: Upgrade to angular 16

[scttcper]

BREAKING CHANGE: requires angular >= 16

[codecov]

Codecov Report

Patch coverage: 88.88% and project coverage change: -0.22 ⚠️

Comparison is base (815e1dd) 55.70% compared to head (88ab72f) 55.49%.

❗ Current head 88ab72f differs from pull request most recent head a93ce85. Consider uploading reports for the commit a93ce85 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #995      +/-   ##
==========================================
- Coverage   55.70%   55.49%   -0.22%     
==========================================
  Files          19       20       +1     
  Lines         508      510       +2     
  Branches       88       88              
==========================================
  Hits          283      283              
- Misses        216      217       +1     
- Partials        9       10       +1     

Impacted Files	Coverage Δ
src/lib/portal/portal.ts	63.15% <ø> (ø)
src/lib/toastr/toast-noanimation.component.ts	3.37% <ø> (ø)
src/lib/toastr/toast.component.ts	73.95% <ø> (ø)
src/lib/toastr/toast.directive.ts	33.33% <ø> (-16.67%)	⬇️
src/lib/toastr/toastr-config.ts	94.73% <ø> (ø)
src/lib/toastr/toastr.module.ts	50.00% <ø> (-7.15%)	⬇️
src/lib/toastr/toast.provider.ts	75.00% <75.00%> (ø)
src/lib/overlay/overlay-container.ts	83.33% <100.00%> (ø)
src/lib/overlay/overlay.ts	86.95% <100.00%> (ø)

... and 1 file with indirect coverage changes

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[github-actions]

🎉 This PR is included in version 17.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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