Enable python 3.13, allow pre-releases for CI (#1086)

Adds py3.13 to the CI.

Thanks to @hugovk for [pointing out `allow-prereleases` on his blog
post](https://dev.to/hugovk/help-test-python-313-14j1)!

---------

Co-authored-by: Steven B. <51370195+sdb9696@users.noreply.github.com>

.github/actions/setup/action.yaml

@@ -19,6 +19,7 @@ runs:
       id: setup-python
       with:
         python-version: "${{ inputs.python-version }}"
+        allow-prereleases: true
 
     - name: Setup pipx environment Variables
       id: pipx-env-setup

.github/workflows/ci.yml

@@ -62,16 +62,12 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "pypy-3.9", "pypy-3.10"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "pypy-3.9", "pypy-3.10"]
         os: [ubuntu-latest, macos-latest, windows-latest]
         extras: [false, true]
         exclude:
           - os: macos-latest
             extras: true
-          # setup-python not currently working with macos-latest
-          # https://github.com/actions/setup-python/issues/808
-          - os: macos-latest
-            python-version: "3.9"
           - os: windows-latest
             extras: true
           - os: ubuntu-latest