chore(deps): bump rkyv to 0.7.46 #51326

Job	Run time
changes / source	7s
changes / e2e_tests	0s
changes / int_tests	0s
Check events	1m 34s
Check code format	2m 25s
Check that the 3rd-party license file is up to date	2m 47s
Check Component Docs	9m 20s
Unit and Component Validation tests - x86_64-unknown-linux-gnu	19m 2s
Check clippy	7m 39s
Check Rust Docs	5m 30s
Build VRL Playground	4m 44s
VRL - Linux	3m 39s
Check scripts	0s
Check Cue docs	0s
Check Markdown	0s
Test Suite	3s
	56m 50s

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