Update aws-lc-rs to v1.6.4 #269

Job	Run time
apidiff (aws-lc-sys, branch)	2m 14s
apidiff (aws-lc-sys, published)	2m 29s
apidiff (aws-lc-fips-sys, branch)	2m 32s
apidiff (aws-lc-fips-sys, published)	2m 44s
apidiff (aws-lc-rs, branch)	2m 14s
apidiff (aws-lc-rs, published)	2m 26s
bindgen-dependency (ubuntu-latest)	22s
bindgen-dependency (macos-12)	1m 1s
bindgen-fips-dependency (ubuntu-latest)	27s
bindgen-fips-dependency (macos-12)	32s
clippy (aws-lc-rs, --features bindgen,unstable)	1m 13s
bindgen-dependency (macos-13-xlarge)	41s
bindgen-fips-dependency (macos-13-xlarge)	39s
dependency-review	26s
clippy (aws-lc-rs, --features bindgen,unstable,fips)	1m 28s
bindgen-dependency (windows-latest)	1m 9s
bindgen-fips-dependency (windows-latest)	1m 18s
clippy (aws-lc-rs, --no-default-features --features aws-lc-sys)	46s
Resolve the dependencies to the minimum SemVer version	55s
mirai-analysis	2m 56s
rustfmt	29s
udeps	7m 40s
copyright	7s
semver-checks	3m 59s
	40m 47s

Provide feedback