anki: fix use of deprecated method removed in python 3.9

Closes: #33287 [via git-merge-pr]

srcpkgs/anki/patches/fix_unescape.patch

@@ -0,0 +1,11 @@
+--- a/aqt/reviewer.py
++++ b/aqt/reviewer.py
+@@ -359,7 +359,7 @@
+         cor = stripHTML(cor)
+         # ensure we don't chomp multiple whitespace
+         cor = cor.replace(" ", " ")
+-        cor = parser.unescape(cor)
++        cor = html.unescape(cor)
+         cor = cor.replace("\xa0", " ")
+         cor = cor.strip()
+         given = self.typedAnswer

srcpkgs/anki/template

@@ -1,7 +1,7 @@
 # Template file for 'anki'
 pkgname=anki
 version=2.1.15
-revision=4
+revision=5
 build_style=gnu-makefile
 depends="python3-PyQt5-webengine python3-requests python3-SQLAlchemy
  python3-PyAudio python3-mpv python3-Markdown python3-send2trash