avm2: Support recursive Vector<Vector<T>> lookups #24460

Job	Run time
Paths filter	7s
Test Rust stable / ubuntu-22.04	4m 57s
Test Rust stable / windows-latest	7m 2s
Check dependencies	1m 26s
Test Rust stable / macos-14	3m 39s
Lints with Rust stable	4m 54s
Lints with Rust beta	4m 21s
Test Rust nightly / ubuntu-22.04	4m 35s
Lints with Rust nightly	4m 18s
Test Rust beta / ubuntu-22.04	4m 53s
Test Rust ${{ matrix.rust_version }} / ${{ matrix.os }}	0s
	40m 12s

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