Fix buildsecret

this MR fixes an indentation issue with build secrets

test/test_helper/template-helpers/src/lint_chart.bash

+# lint chart
+# ==========
+#
+# Summary: Lint the chart and test if everything is ok
+#
+# Usage: lint_chart <config>
+
+# Options:
+#   <config>    The JSON-encoded configuration that you want to lint
+#
+# IO:
+#   STDERR - the failed expression, on failure
+# Globals:
+#   none
+# Returns:
+#   0 - if the template has been created successfully
+#   1 - otherwise
+#
+#   ```bash
+#   @test 'lint()' {
+#     lint_chart '{"some_param": "test"}'
+#   }
+#   ```
+#
+lint_chart() {
+  echo "$1" >> "${PROJECT_FOLDER}/linter_values.yaml"
+  helm lint -f ${PROJECT_FOLDER}/linter_values.yaml ${PROJECT_FOLDER}
+}