Bump commons-compress from 1.4 to 1.21 in /mavenizer/converters/flash

Bumps commons-compress from 1.4 to 1.21.

---
updated-dependencies:
- dependency-name: org.apache.commons:commons-compress
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/mavenizer/converters/flash/pom.xml b/mavenizer/converters/flash/pom.xml
index 84d0ad3..897dd89 100644
--- a/mavenizer/converters/flash/pom.xml
+++ b/mavenizer/converters/flash/pom.xml
@@ -41,7 +41,7 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-compress</artifactId>
-            <version>1.4</version>
+            <version>1.21</version>
         </dependency>
     </dependencies>