Turning CI on Windows and MacOs back on

Author: schuemie

.github/workflows/R_CMD_check_Hades.yaml

@@ -20,6 +20,8 @@ jobs:
       fail-fast: false
       matrix:
         config:
+          - {os: windows-latest, r: 'release'}
+          - {os: macOS-latest, r: 'release'}
           - {os: ubuntu-20.04, r: 'release', rspm: "https://packagemanager.rstudio.com/cran/__linux__/focal/latest"}
 
     env: