BUG: fix NameError raised when specifying dtype with string having "[pyarrow]" while PyArrow is not installed (#60413)

* Add test

* Fix

* Add note

* Update pandas/tests/dtypes/test_common.py

Co-authored-by: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>

* update

* Fix doc warning

---------

Co-authored-by: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>

Author: 2 people

.gitignore

@@ -137,3 +137,18 @@ doc/source/savefig/
 # Interactive terminal generated files #
 ########################################
 .jupyterlite.doit.db
+
+# Ignore virtual environments
+venv/
+pandas-env/
+.env/
+*.egg-info/
+build/
+# Ignore compiled files
+*.pyc
+*.pyo
+*.pyd
+
+# Ignore system-specific files
+.DS_Store
+Thumbs.db