feat(minifier): minify string `PropertyKey` #25229

Job	Run time
Build Linter Benchmark	2m 44s
Benchmark (lexer)	1m 18s
Benchmark (parser)	1m 36s
Benchmark (transformer)	2m 4s
Benchmark (isolated_declarations)	2m 8s
Benchmark (semantic)	1m 36s
Benchmark (minifier)	2m 0s
Benchmark (codegen)	1m 59s
Benchmark linter (0)	3m 0s
Benchmark linter (1)	1m 56s
Upload benchmarks	14s
	20m 35s

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