!8 update version to 4.5.2

From: @tong_1001
Reviewed-by: @overweight
Signed-off-by: @overweight

python-lxml.spec

@@ -6,8 +6,8 @@ the simplicity of a native Python API, mostly compatible but superior to the wel
 The latest release works with all CPython versions from 2.7 to 3.7.
 
 Name:           python-%{modname}
-Version:        4.2.3
-Release:        5
+Version:        4.5.2
+Release:        1
 Summary:        XML processing library combining libxml2/libxslt with the ElementTree API
 License:        BSD
 URL:            http://lxml.de
@@ -63,6 +63,9 @@ export WITH_CYTHON=true
 %doc README.rst src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt
 
 %changelog
+* Tue Jan 05 2020 shixuantong <shixuantong@huawei.com> - 4.5.2-1
+- update version to 4.5.2
+
 * Fri Aug 21 2020 shixuantong <shixuantong@huawei.com> - 4.2.3-5
 - add release version for rebuild