MNT: use mamba

kmuehlbauer · kmuehlbauer · commit f5827c008757 · 2023-02-10T15:54:30.000+01:00
diff --git a/readthedocs.yml b/readthedocs.yml
@@ -1,7 +1,9 @@
 version: 2
 
 build:
-  image: latest
+  os: "ubuntu-20.04"
+  tools:
+    python: "mambaforge-4.10"
 
 conda:
     environment: readthedocs_environment.yml
