Fix psrule config to use repo root relative path (#19)

When template and parameters file is in a subfolder, psrule fail with "Unable to find template referenced within parameter file". This update will fix that.

Additional fixes:

- If the parameters file was updated with metadata, then the updated file will be included in job artifacts.
- Add more output to the workflow log to show what is going on.

scripts/psrule-config.sh

@@ -15,21 +15,28 @@ else
   echo "Use PSRule config at ${OPTION}"
   if test -n "${TEMPLATE_FILE}" && [[ "${TEMPLATE_PARAMS_FILE}" == *'.parameters.json' ]]; then
     file=$TEMPLATE_PARAMS_FILE
-    t=$(basename "${TEMPLATE_FILE}")
-    p=$(basename "${file}")
+    t=$(realpath --relative-to="$(pwd)" "${TEMPLATE_FILE}")
+    p=$(realpath --relative-to="$(pwd)" "${file}")
     if [ "${t/.json/}" != "${p/.parameters.json/}" ]; then
+      echo "Template name '${t/.json/}' differ from parameters '${p/.parameters.json/}'"
       meta=$(jq -r '.metadata | select (.!=null)' "${file}")
       if test -z "${meta}"; then
         json=$(jq --arg t "${t}" '. += {metadata:{template:$t}}' "${file}")
         if test -n "${json}"; then
           printf '%s\n' "${json}" >"${file}"
+          echo "Added metadata to ${file}"
+          cp "${file}" "${LOG_PATH}/"
         fi
       else
         json=$(jq --arg t "${t}" '.metadata += {template:$t}' "${file}")
         if test -n "${json}"; then
           printf '%s\n' "${json}" >"${file}"
+          echo "Updated metadata in ${file}"
+          cp "${file}" "${LOG_PATH}/"
         fi
       fi
+    else
+      echo "No need to set metadata in ${file}"
     fi
   fi
 fi