Update .readthedocs.yml

Author: jan-janssen

.readthedocs.yml

@@ -6,9 +6,9 @@
 version: 2
 
 build:
-  os: "ubuntu-20.04"
+  os: "ubuntu-22.04"
   tools:
-    python: "mambaforge-4.10"
+    python: "mambaforge-22.9"
 
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
@@ -25,4 +25,4 @@ conda:
 python:
   install:
     - method: pip
-      path: .
+      path: .