[SPARK-55513][BUILD] Upgrade commons-codec to 1.21.0

### What changes were proposed in this pull request?

This PR aims to upgrade `commons-codec` to 1.21.0.

### Why are the changes needed?

To bring the latest improvements and bug fixes.

- https://commons.apache.org/proper/commons-codec/changes.html#a1.21.0 (2026-01-23)
  - apache/commons-codec#419

### Does this PR introduce _any_ user-facing change?

No behavior change.

### How was this patch tested?

Pass the CIs.

### Was this patch authored or co-authored using generative AI tooling?

Generated-by: `Gemini 3 Pro (High)` on `Antigravity`

Closes #54304 from dongjoon-hyun/SPARK-55513.

Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: yangjie01 <yangjie01@baidu.com>

Author: dongjoon-hyun

dev/deps/spark-deps-hadoop-3-hive-2.3

@@ -35,7 +35,7 @@ cats-kernel_2.13/2.8.0//cats-kernel_2.13-2.8.0.jar
 chill-java/0.10.0//chill-java-0.10.0.jar
 chill_2.13/0.10.0//chill_2.13-0.10.0.jar
 commons-cli/1.10.0//commons-cli-1.10.0.jar
-commons-codec/1.20.0//commons-codec-1.20.0.jar
+commons-codec/1.21.0//commons-codec-1.21.0.jar
 commons-collections4/4.5.0//commons-collections4-4.5.0.jar
 commons-compiler/3.1.9//commons-compiler-3.1.9.jar
 commons-compress/1.28.0//commons-compress-1.28.0.jar

pom.xml

@@ -187,7 +187,7 @@
     <ws.xmlschema.version>2.3.1</ws.xmlschema.version>
     <snappy.version>1.1.10.8</snappy.version>
     <netlib.ludovic.dev.version>3.0.4</netlib.ludovic.dev.version>
-    <commons-codec.version>1.20.0</commons-codec.version>
+    <commons-codec.version>1.21.0</commons-codec.version>
     <commons-compress.version>1.28.0</commons-compress.version>
     <commons-io.version>2.21.0</commons-io.version>
     <!-- To support Hive UDF jars built by Hive 2.0.0 ~ 2.3.9 and 3.0.0 ~ 3.1.3. -->