font-awesome5: update to 5.15.4.

Also:
- add changelog.

Closes: #32339 [via git-merge-pr]

srcpkgs/font-awesome5/template

@@ -1,6 +1,6 @@
 # Template file for 'font-awesome5'
 pkgname=font-awesome5
-version=5.15.3
+version=5.15.4
 revision=1
 wrksrc="Font-Awesome-${version}"
 depends="font-util"
@@ -8,8 +8,9 @@ short_desc="Iconic font (version 5)"
 maintainer="mobinmob <mobinmob@disroot.org>"
 license="OFL-1.1"
 homepage="https://fontawesome.com"
+changelog="https://raw.githubusercontent.com/FortAwesome/Font-Awesome/master/CHANGELOG.md"
 distfiles="https://github.com/FortAwesome/Font-Awesome/archive/${version}.tar.gz"
-checksum=3159331c378de00ae69d6c35d7b00f8d9610eafd6acc4c5c28319c08e9158a31
+checksum=82c301594a566277ba3cf41e037fc03ae101727d3e5d682d09e322a53937b5ed
 conflicts="font-awesome>=0"
 font_dirs="/usr/share/fonts/OTF"