Trac sagemath#33878: Upgrade cypari2 to 2.1.3

This is needed for python 3.11 support (sagemath#33842) and to make cypari
compatible with current pari version

https://groups.google.com/g/sage-devel/c/jqmr6bDjDrk/m/XE2GlB_GBgAJ

Necessary follow ups:
- make cypari thread safe: see
[[https://github.com/sagemath/cypari2/pull/116|cypari2 sagemath#116]]
- remove optional build time dependency of cysignals on pari: see
[[https://github.com/sagemath/cypari2/pull/130|cypari2 sagemath#130]]

URL: https://trac.sagemath.org/33878
Reported by: gh-kliem
Ticket author(s): Matthias Koeppe
Reviewer(s): Dima Pasechnik

build/pkgs/cypari/checksums.ini

@@ -1,5 +1,5 @@
 tarball=cypari2-VERSION.tar.gz
-sha1=2a3039aa6bd690206cb58d4c39aef21e736eacf1
-md5=6267c0dace847160763dc1777a390c0a
-cksum=3639046443
+sha1=7208fd9d0b636ca7704d3b7d1167bc7c9af2637c
+md5=605b157123bd8a498d53572e8096bb8c
+cksum=2809951255
 upstream_url=https://pypi.io/packages/source/c/cypari2/cypari2-VERSION.tar.gz

build/pkgs/cypari/package-version.txt

@@ -1 +1 @@
-2.1.2
+2.1.3