Disable panic hooks in Release mode #2804

Job	Run time
license-guard	33s
doc-lints	46s
godot-itest (macos)	1m 17s
clippy	1m 53s
godot-itest (windows)	2m 12s
run-examples	1m 39s
godot-itest (linux-full)	2m 20s
rustfmt	17s
godot-itest (linux-features-experimental)	2m 7s
godot-itest (linux-4.1)	1m 14s
godot-itest (linux-4.2)	1m 39s
godot-itest (linux-memcheck)	2m 17s
unit-test	2m 19s
ci-status	2s
	20m 35s

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