build: Compile with C++20 #1565

Job	Run time
build test data	2m 8s
test with NullVM on Linux/x86_64	2m 2s
test with NullVM on Linux/x86_64 with ASan	3m 16s
test with NullVM on Linux/x86_64 with TSan	3m 17s
test with NullVM on Windows/x86_64	5m 49s
test with V8 on Linux/x86_64	2h 56m 57s
test with V8 on Linux/x86_64 with ASan	3h 12m 18s
test with V8 on Linux/x86_64 with TSan	2h 57m 38s
test with V8 on Linux/x86_64 with GCC	2h 37m 50s
test with V8 on Linux/aarch64	1h 29m 47s
test with V8 on macOS/x86_64	2h 59m 6s
test with WAMR interp on Linux/x86_64	2m 31s
test with WAMR interp on macOS/x86_64	5m 17s
test with WAMR jit on Linux/x86_64	1h 12m 21s
test with WAMR jit on macOS/x86_64	1h 14m 51s
test with WasmEdge on Linux/x86_64	6m 41s
test with WasmEdge on macOS/x86_64	7m 51s
test with Wasmtime on Linux/x86_64	7m 36s
test with Wasmtime on Linux/x86_64 with ASan	5m 5s
build with Wasmtime on Linux/aarch64	6m 41s
test with Wasmtime on Linux/s390x	24m 6s
test with Wasmtime on macOS/x86_64	8m 4s
test with Wasmtime on Windows/x86_64	7m 4s
test with WAVM on Linux/x86_64	1h 7m 54s
	21h 26m 10s

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