Backport PR #30321 on branch v3.10.x (Fix type annotation for Axes.get_legend() to include None)#30326

dstansby merged 1 commit intomatplotlib:v3.10.xmatplotlib/matplotlib:v3.10.xfrom

meeseeksmachine:auto-backport-of-pr-30321-on-v3.10.xmeeseeksmachine/matplotlib:auto-backport-of-pr-30321-on-v3.10.xCopy head branch name to clipboard