testing/b3sum: upgrade to 0.3.8

testing/b3sum/APKBUILD

 # Contributor: Leo <thinkabit.ukim@gmail.com>
 # Maintainer:
 pkgname=b3sum
-pkgver=0.3.7
-pkgrel=2
+pkgver=0.3.8
+pkgrel=0
 pkgdesc="Command line implementation of the BLAKE3 hash function"
 url="https://blake3.io"
 arch="all !s390x !armhf !mips !mips64" # armhf: 'vaddq_u32': target specific option mismatch
@@ -27,4 +27,6 @@ package() {
 	rm "$pkgdir"/usr/.crates*
 }
 
-sha512sums="78749ffc7e3632344996dda635b31a7a91a16e201ff8398148211a4315285c7c1d65acb78307fc8f54d7ce83e26364c8eafec94933f61aa78ed395540d44f833  b3sum-0.3.7.tar.gz"
+sha512sums="
+ae4e9f8bb035224afc1127f00d5f83567dea082a9b243cc8a024831ad4867278a2afb48fd5f64d60e1002ec12d446c9c9925523f1798f1006f4e07bd615e1afd  b3sum-0.3.8.tar.gz
+"