convert license to SPDX

This is part of https://fedoraproject.org/wiki/Changes/SPDX_Licenses_Phase_4

python-pytest-benchmark.spec

@@ -2,9 +2,10 @@
 
 Name: python-%{srcname}
 Version: 4.0.0
-Release: 8%{?dist}
+Release: 9%{?dist}
 Summary: A py.test fixture for benchmarking code
-License: BSD
+# Automatically converted from old format: BSD - review is highly recommended.
+License: LicenseRef-Callaway-BSD
 URL: https://pytest-benchmark.readthedocs.io
 Source: https://github.com/ionelmc/%{srcname}/archive/v%{version}/%{srcname}-%{version}.tar.gz
 BuildArch: noarch
@@ -62,6 +63,9 @@ Requires: python3-cpuinfo
 %{python3_sitelib}/pytest_benchmark-%{version}-py*.egg-info
 
 %changelog
+* Wed Sep 04 2024 Miroslav Suchý <msuchy@redhat.com> - 4.0.0-9
+- convert license to SPDX
+
 * Fri Jul 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 4.0.0-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild