[DEVOPS-693] NO_COLOR has no effect. Now pipe to sed

Author: sebhmg

.readthedocs.yml

@@ -31,5 +31,5 @@ build:
 
     build:
       html:
-        - NO_COLOR=1 pixi run --frozen build-docs html $READTHEDOCS_OUTPUT
+        - pixi run --frozen build-docs html $READTHEDOCS_OUTPUT | sed 's/\\x1b\\[[0-9;]*m//g'
         - mv $READTHEDOCS_OUTPUT/_build/html/ $READTHEDOCS_OUTPUT/