DOC: add SA01 for pandas.api.extensions.ExtensionArray.shape#58705

mroeschke merged 2 commits intopandas-dev:mainpandas-dev/pandas:mainfrom

tuhinsharma121:pandas.api.extensions.ExtensionArray.shapetuhinsharma121/pandas:pandas.api.extensions.ExtensionArray.shapeCopy head branch name to clipboard