Bump xercesImpl from 2.2.1 to 2.12.2 in /core

Bumps xercesImpl from 2.2.1 to 2.12.2.

---
updated-dependencies:
- dependency-name: xerces:xercesImpl
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/core/pom.xml b/core/pom.xml
index f81a8b1..a6359f0 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -115,7 +115,7 @@
     <dependency>
       <groupId>xerces</groupId>
       <artifactId>xercesImpl</artifactId>
-      <version>2.2.1</version>
+      <version>2.12.2</version>
     </dependency>
   </dependencies>
 </project>