fix: constrain ipython for ultraplot le 1.0.8.post2

[beckermr]

Checklist

• Used a static YAML file for the patch if possible (instructions).
• Only wrote code directly into generate_patch_json.py if absolutely necessary.
• Ran pre-commit run -a and ensured all files pass the linting checks.
• Ran python show_diff.py and posted the output as part of the PR.
• Modifications won't affect packages built in the future.

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.

[beckermr]

diff is correct

noarch
noarch::ultraplot-1.0.3-pyhd8ed1ab_0.conda
noarch::ultraplot-1.0.5-pyhd8ed1ab_0.conda
noarch::ultraplot-1.0.8.post2-pyhd8ed1ab_0.conda
noarch::ultraplot-0.99.3-pyhd8ed1ab_0.conda
noarch::ultraplot-0.99.3-pyhd8ed1ab_1.conda
noarch::ultraplot-1.0.8-pyhd8ed1ab_0.conda
noarch::ultraplot-1.0.7-pyhd8ed1ab_0.conda
+  "constrains": [
+    "ipython <9.0a0"
+  ],