refactor(linter): pass &Allocator into Linter::run

[overlookmotel]

WIP

[overlookmotel]

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This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• refactor(linter): pass &Allocator into Linter::run #12349 👈 (View in Graphite)
• refactor(allocator): store allocation pointer in metadata #12348
• feat(allocator): add Allocator::end_ptr method #12330 : 1 other dependent PR (#12379 )
• refactor(linter): pass &Allocator into Linter::run_external_rules #12374
• main

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #12349 will not alter performance

_{Comparing 07-16-refactor_linter_pass_allocator_into_linter_run_ (c6941c8) with main (4fc4e7c)}

Summary

✅ 34 untouched benchmarks