Bump commons-codec:commons-codec from 1.12 to 1.15 in /buildSrc (#56)

Bumps [commons-codec:commons-codec](https://github.com/apache/commons-codec) from 1.12 to 1.15.
- [Release notes](https://github.com/apache/commons-codec/releases)
- [Changelog](https://github.com/apache/commons-codec/blob/rel/commons-codec-1.15/RELEASE-NOTES.txt)
- [Commits](apache/commons-codec@commons-codec-1.12...rel/commons-codec-1.15)

---
updated-dependencies:
- dependency-name: commons-codec:commons-codec
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

buildSrc/build.gradle

@@ -70,7 +70,7 @@ dependencies {
 
     // Required for dependency licenses task
     implementation 'org.apache.rat:apache-rat:0.13'
-    implementation 'commons-codec:commons-codec:1.12'
+    implementation 'commons-codec:commons-codec:1.15'
 
     if (localRepo) {
         implementation name: "build-tools-${buildToolsVersion}"