user/libical: bump to 3.0.4

user/libical/APKBUILD

 # Maintainer: 
 pkgname=libical
-pkgver=3.0.3
+pkgver=3.0.4
 pkgrel=0
 pkgdesc="Reference implementation of the iCalendar format"
 url="https://libical.github.io/libical/"
@@ -31,4 +31,4 @@ package() {
 	make DESTDIR="$pkgdir" install
 }
 
-sha512sums="ed8e7917e37abbe426a06b4ae049a365e66542b1258ba22ebacbe842bda883d0fe591e65574fd954da531d6414a7b13e84fa28a20e7b08836679107f615df27a  libical-3.0.3.tar.gz"
+sha512sums="491a1dd0c33bb823a79165eb6e4f86ef048a44642adfe44f8e69c83598b458ddf8e4365b11afc37d0b21bc1367e0a99096fc7887aae29e7ff4e3bd1cdee64dd9  libical-3.0.4.tar.gz"