crypto: refactor WebCrypto AEAD algorithms auth tag handling #4155

Job	Run time
Build slim tarball	2m 4s
x86_64-darwin: with shared libraries	37m 26s
x86_64-linux: with shared libraries	22m 10s
aarch64-darwin: with shared libraries	22m 13s
aarch64-linux: with shared libraries	18m 12s
	1h 42m 5s

Provide feedback