fix: Pin docutils<=0.21.2 to fix rst2ansi incompatibility

Newer versions of `docutils` (>=0.22) are incompatible with the
unmaintained `rst2ansi` library, causing a `ModuleNotFoundError` on
startup when `rst2ansi` tries to import `docutils.utils.error_reporting`.

Author: jstvz

pyproject.toml

@@ -54,7 +54,7 @@ dependencies = [
     "simple-salesforce==1.11.4",
     "snowfakery>=4.0.0",
     "xmltodict",
-    "docutils>=0.21.2",
+    "docutils<=0.21.2",
 ]
 
 [dependency-groups]