Fix source distribution so it does not depend on eccodeslib

Author: iainrussell

.github/workflows/cd.yml

@@ -27,7 +27,7 @@ jobs:
     with:
       env_vars: |
         {
-          "DEPEND_ON_ECCODESLIB": "1",
+          "DEPEND_ON_ECCODESLIB": "1"
         }
       buildargs: --no-isolation
       testpypi: true