etcd: replace github.com/coreos/bbolt => go.etcd.io/bbolt

For some reason, they changed their package path but not import path.

I don't use etcd, I don't  want to be blamed for version bump.

srcpkgs/etcd/template

@@ -1,7 +1,7 @@
 # Template file for 'etcd'
 pkgname=etcd
 version=3.4.4
-revision=1
+revision=2
 build_style=go
 short_desc="Distributed reliable key-value store"
 maintainer="Andrea Brancaleoni <abc@pompel.me>"
@@ -17,6 +17,10 @@ conf_files="/etc/sv/etcd/conf"
 system_accounts="etcd"
 make_dirs="/var/lib/etcd 0755 etcd etcd"
 
+post_patch() {
+	echo "replace github.com/coreos/bbolt => go.etcd.io/bbolt v1.3.5" >>go.mod
+}
+
 post_install() {
 	vlicense LICENSE
 	vsv etcd