chore(es/ast): Use `opt-level = s` for AST #11209

Performance Regression: -6.92%

❌ 44 regressed benchmarks
✅ 140 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

	Benchmark	`BASE`	`HEAD`	Efficiency
❌	`es/full/base/fixer`	110.4 µs	113.3 µs	-2.56%
❌	`es2015_sticky_regex`	316.4 µs	324 µs	-2.34%
❌	`es/transform/baseline/base`	269.7 µs	277.5 µs	-2.8%
❌	`es/transform/baseline/common_reserved_word`	287.1 µs	294.9 µs	-2.67%
❌	`es2015_arrow`	317.6 µs	325.5 µs	-2.43%
❌	`es/target/es2016`	318.6 µs	326.3 µs	-2.36%
❌	`es2015_typeof_symbol`	318.7 µs	326.3 µs	-2.32%
❌	`es/target/es2017`	319.4 µs	327.7 µs	-2.53%
❌	`es2015_computed_props`	284.9 µs	292.6 µs	-2.64%
❌	`es2015_fn_name`	318.2 µs	326.3 µs	-2.46%
❌	`es2015_block_scoped_fn`	307.4 µs	315.4 µs	-2.54%
❌	`es/target/es2018`	327.2 µs	334.9 µs	-2.29%
❌	`es2015_instanceof`	319.6 µs	327.3 µs	-2.34%
❌	`es2015_destructuring`	368.6 µs	377.9 µs	-2.45%
❌	`es2015_parameters`	350.6 µs	359.4 µs	-2.46%
❌	`es2015_shorthand_property`	311.7 µs	319.3 µs	-2.38%
❌	`es2016_exponentiation`	315.6 µs	323.1 µs	-2.32%
❌	`es2017_async_to_generator`	317.1 µs	325.4 µs	-2.54%
❌	`es2015_duplicate_keys`	319.6 µs	327.9 µs	-2.54%
❌	`es2019_optional_catch_binding`	309.3 µs	316.9 µs	-2.39%
...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

_{Comparing kdy1/size-bloat (11bfcd8) with main (6b3644b)¹}

No successful run was found on main (8b0647d) during the generation of this report, so 6b3644b was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩