CI: mark hdf5 as inaccessible on macOS with config-tool instead of pkg-config

It is broken with the cmake build. With the previous commit, it now
shows the former as UNEXSKIP instead of ERROR.

test cases/frameworks/25 hdf5/test.json

@@ -2,8 +2,8 @@
   "matrix": {
     "options": {
       "method": [
-        { "val": "pkg-config", "skip_on_jobname": ["macos"] },
-        { "val": "config-tool" }
+        { "val": "pkg-config" },
+        { "val": "config-tool", "skip_on_jobname": ["macos"] }
       ]
     }
   },