Backport PR pandas-dev#48381 on branch 1.5.x (CI: Pin mambaforge imag…

…e) (pandas-dev#48401)

Backport PR pandas-dev#48381: CI: Pin mambaforge image

Co-authored-by: Patrick Hoefler <61934744+phofl@users.noreply.github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM quay.io/condaforge/mambaforge
+FROM quay.io/condaforge/mambaforge:4.13.0-1
 
 # if you forked pandas, you can pass in your own GitHub username to use your fork
 # i.e. gh_username=myname