Merge branch 'master' into fix-schema

Author: krassowski

.github/workflows/job.test.yml

@@ -5,10 +5,12 @@ on:
     branches:
       - master
       - 2.x
+      - 3.x
   pull_request:
     branches:
       - master
       - 2.x
+      - 3.x
   workflow_dispatch:
 
 # TODO: might need to tweak `group`

binder/environment.yml

@@ -26,6 +26,8 @@ dependencies:
   - ruamel_yaml
   # for R language server and kernel
   - r
+  # workaround for https://github.com/jupyterhub/repo2docker/issues/1140
+  - r-base=4.0
   - r-irkernel
   - r-languageserver
   - rpy2