Update dependency commons-codec:commons-codec to v1.21.0

Author: renovate[bot]

pom.xml

@@ -61,7 +61,7 @@
     <gson.version>2.13.2</gson.version>
     <jackson.version>2.17.3</jackson.version>
     <maven.modernizer.version>3.9.12</maven.modernizer.version>
-    <commons-codec.version>1.20.0</commons-codec.version>
+    <commons-codec.version>1.21.0</commons-codec.version>
     <jacoco-maven-plugin.version>0.8.14</jacoco-maven-plugin.version>
     <jgit.version>7.5.0.202512021534-r</jgit.version>
     <github-api.version>2.0-rc.5</github-api.version>