fix(prefect): add historic pydantic<2 constraints

[croth1]

Checklist

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

fixes: https://github.com/conda-forge/prefect-feedstock/issues/320

changes:

================================================================================
================================================================================
noarch
noarch::prefect-2.6.0-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.8.6-pyhd8ed1ab_0.conda
noarch::prefect-2.10.3-pyhd8ed1ab_0.conda
noarch::prefect-2.10.5-pyhd8ed1ab_0.conda
noarch::prefect-2.10.10-pyhd8ed1ab_0.conda
noarch::prefect-2.6.2-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.8.5-pyhd8ed1ab_0.conda
noarch::prefect-2.10.8-pyhd8ed1ab_0.conda
noarch::prefect-2.6.1-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.6.5-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.8.1-pyhd8ed1ab_0.conda
noarch::prefect-2.6.3-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.0.2-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.10.11-pyhd8ed1ab_0.conda
noarch::prefect-2.10.18-pyhd8ed1ab_0.conda
noarch::prefect-2.10.17-pyhd8ed1ab_0.conda
noarch::prefect-2.7.10-pyhd8ed1ab_0.conda
noarch::prefect-2.6.7-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.0.4-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.3.1-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.10.0-pyhd8ed1ab_0.conda
noarch::prefect-2.7.3-pyhd8ed1ab_0.conda
noarch::prefect-2.2.0-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.7.12-pyhd8ed1ab_0.conda
noarch::prefect-2.9.0-pyhd8ed1ab_0.conda
noarch::prefect-2.4.0-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.10.13-pyhd8ed1ab_0.conda
noarch::prefect-2.6.8-pyhd8ed1ab_0.conda
noarch::prefect-2.7.11-pyhd8ed1ab_0.conda
noarch::prefect-2.7.10-pyhd8ed1ab_1.conda
noarch::prefect-2.3.2-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.4.5-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.1.1-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.8.7-pyhd8ed1ab_0.conda
noarch::prefect-2.6.9-pyhd8ed1ab_0.conda
noarch::prefect-2.10.6-pyhd8ed1ab_0.conda
noarch::prefect-2.8.4-pyhd8ed1ab_0.conda
noarch::prefect-2.7.0-pyhd8ed1ab_0.conda
noarch::prefect-2.10.2-pyhd8ed1ab_0.conda
noarch::prefect-2.6.6-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.6.4-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.10.12-pyhd8ed1ab_0.conda
noarch::prefect-2.10.9-pyhd8ed1ab_0.conda
noarch::prefect-2.7.4-pyhd8ed1ab_0.conda
noarch::prefect-2.7.5-pyhd8ed1ab_0.conda
noarch::prefect-2.0.1-pyhd8ed1ab_1.tar.bz2
noarch::prefect-2.0.2-pyhd8ed1ab_1.tar.bz2
noarch::prefect-2.10.7-pyhd8ed1ab_0.conda
noarch::prefect-2.7.2-pyhd8ed1ab_0.conda
noarch::prefect-2.7.7-pyhd8ed1ab_0.conda
noarch::prefect-2.7.1-pyhd8ed1ab_0.conda
noarch::prefect-2.8.3-pyhd8ed1ab_0.conda
noarch::prefect-2.10.14-pyhd8ed1ab_0.conda
noarch::prefect-2.4.2-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.10.1-pyhd8ed1ab_0.conda
noarch::prefect-2.8.0-pyhd8ed1ab_0.conda
noarch::prefect-2.7.6-pyhd8ed1ab_0.conda
noarch::prefect-2.10.19-pyhd8ed1ab_0.conda
noarch::prefect-2.7.9-pyhd8ed1ab_0.conda
noarch::prefect-2.8.2-pyhd8ed1ab_0.conda
noarch::prefect-2.10.4-pyhd8ed1ab_0.conda
noarch::prefect-2.10.15-pyhd8ed1ab_0.conda
noarch::prefect-2.0.3-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.7.8-pyhd8ed1ab_0.conda
noarch::prefect-2.3.0-pyhd8ed1ab_0.tar.bz2
noarch::prefect-2.5.0-pyhd8ed1ab_0.tar.bz2
-    "pydantic >=1.8.2",
+    "pydantic >=1.8.2,<2",
================================================================================
================================================================================
linux-64
linux-64::prefect-2.0.1-py39ha770c72_0.tar.bz2
-    "pydantic >=1.8.2",
+    "pydantic >=1.8.2,<2",

[conda-forge-webservices[bot]]

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.