Another attempt to get CI running workflow grabbing diskspace usage

.github/actions/dump-disk-info/action.yaml

@@ -6,7 +6,5 @@ inputs:
     required: true
 runs:
   using: "composite"
-  steps:
-    - name: Dump info
-      run: df -h
-  post: df -h
+  main: ./scripts/dump_disk_info.sh
+  post: ./scripts/dump_disk_info.sh

scripts/dump_diskspace_info.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2022 Project CHIP Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+set -e
+
+df -h