Bug 2048985 - Fix opensuse-leap bootstrap job for Leap 16. r=jcristau

The opensuse/leap image rolled forward to Leap 16, which ships Python 3.13 and no
longer provides the python311-pip/python311-curses packages, so the pre-install
step failed outright. Switch to the version-agnostic python3-pip/python3-curses
names (which Leap provides via its python313 packages) so this does not break
again on the next Python bump, and drop the manual python3 symlink that the
packages already provide.

Differential Revision: https://phabricator.services.mozilla.com/D310219

Author: rvandermeulen

taskcluster/kinds/bootstrap/kind.yml

@@ -106,8 +106,7 @@ tasks:
     opensuse-leap:
         image: opensuse/leap
         pre-commands:
-            - zypper install -y curl git python311-pip python311-curses gzip
-            - ln -s /usr/bin/python3.11 /usr/bin/python3
+            - zypper install -y curl git python3-pip python3-curses gzip
     opensuse-tumbleweed:
         image: opensuse/tumbleweed
         pre-commands: