Jenn Magder f2152f1e0d Update iOS KeyCodeMap dictionary literal and migrate to ARC (flutter/engine#51981)
Framework template updated in https://github.com/flutter/flutter/pull/146481.  See [gen_keycodes README](https://github.com/flutter/flutter/tree/master/dev/tools/gen_keycodes ) for details.

Fixes https://github.com/flutter/flutter/issues/146480 `-Wobjc-redundant-literal-use` error.

Note `-Wobjc-redundant-literal-use` is already on for clang-tidy 
3e5e40c10a/.clang-tidy (L13) but in this case it's only true triggered when the file is compiled with ARC.  When I migrated this file to ARC as part of https://github.com/flutter/flutter/issues/137801, it triggered the error.
2024-04-11 23:59:24 +00:00
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