chore: Update to protoc 3.23.4 #2024

Job	Run time
check docs	1m 13s
cargo-deny check	27s
check (ubuntu-latest, stable)	1m 30s
check (macOS-latest, stable)	2m 7s
check (windows-latest, stable)	3m 16s
Interop Tests (ubuntu-latest, stable)	55s
Interop Tests (macOS-latest, stable)	1m 25s
Interop Tests (windows-latest, stable)	2m 18s
Check MSRV	3m 36s
rustfmt	12s
test (ubuntu-latest, stable)	6m 58s
test (macOS-latest, stable)	5m 50s
test (windows-latest, stable)	9m 4s
Check unused dependencies (ubuntu-latest)	7m 22s
Check unused dependencies (macOS-latest)	11m 26s
Check unused dependencies (windows-latest)	10m 39s
	1h 8m 18s

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