Update Checkstyle DTD version from 1.0 to 1.2
diff --git a/commons-digester3-core/checkstyle-suppressions.xml b/commons-digester3-core/checkstyle-suppressions.xml
index 1464f47..9661b07 100644
--- a/commons-digester3-core/checkstyle-suppressions.xml
+++ b/commons-digester3-core/checkstyle-suppressions.xml
@@ -1,7 +1,4 @@
<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE suppressions PUBLIC
- "-//Checkstyle//DTD SuppressionFilter Configuration 1.0//EN"
- "https://checkstyle.org/dtds/suppressions_1_0.dtd">
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
@@ -18,6 +15,9 @@
See the License for the specific language governing permissions and
limitations under the License.
-->
+<!DOCTYPE suppressions PUBLIC
+ "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
+ "https://checkstyle.org/dtds/suppressions_1_2.dtd">
<suppressions>
<suppress checks="RegexpHeader" files="package-info.java" lines="0-9999" />
<suppress checks="HiddenField" files=".+\.java" lines="0-9999" />