Put "--with-eccodes=yes"option in dwd-icon-tools/package.py so that uses ecCodes for GRIBs

spack_repo/packages/dwd-icon-tools/package.py

@@ -69,6 +69,7 @@ class DwdIconTools(Package):
     def install(self, spec, prefix):
         options = [
             f"--prefix={prefix}",
+            "--with-eccodes=yes",
             "--enable-grib2",
             "--enable-iso-c-interface",
             f"--with-netcdf={spec['netcdf-c'].prefix}"