bump cdm-obs version to the one with the CSV tables

Author: garciampred

.github/workflows/on-push.yml

@@ -36,7 +36,7 @@ jobs:
       uses: actions/checkout@v3
       with:
         repository: ecmwf-projects/cdm-obs.git
-        ref: '0.1.0'
+        ref: '0.2.0'
         path: cdm-obs
     - name: Download cads-forms-insitu
       env: