Bump commons-parent from 48 to 51 (#42)

Bumps commons-parent from 48 to 51.

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/pom.xml b/pom.xml
index 8423159..fa6e672 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-parent</artifactId>
-    <version>48</version>
+    <version>51</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <groupId>commons-cli</groupId>