feat: use new linker pipeline on iOS

[bryanoltman]

Teach shorebird patch ios how to use the new linker pipeline when available.

[eseidel]

Is this what I need to test the new object pool linker? (I presume so).

[bryanoltman]

Yep - this just adds the gen snapshot path and path to the kernel file to the aot-tools link command call

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 99.96%. Comparing base (3b0f2e4) to head (a5ca14b).

❗ Current head a5ca14b differs from pull request most recent head 25685de. Consider uploading reports for the commit 25685de to get more accurate results

Files	Patch %	Lines
...s/shorebird_cli/lib/src/executables/aot_tools.dart	83.33%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##              main    #1810      +/-   ##
===========================================
- Coverage   100.00%   99.96%   -0.04%     
===========================================
  Files          173      173              
  Lines         5403     5419      +16     
===========================================
+ Hits          5403     5417      +14     
- Misses           0        2       +2     

Flag	Coverage Δ
shorebird_cli	99.95% <87.50%> (-0.05%)	⬇️

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