chore(deps): update plugin org.owasp.dependencycheck to v12.1.5 (#1066)

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This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| org.owasp.dependencycheck | `12.1.3` -> `12.1.5` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/org.owasp.dependencycheck:org.owasp.dependencycheck.gradle.plugin/12.1.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/org.owasp.dependencycheck:org.owasp.dependencycheck.gradle.plugin/12.1.3/12.1.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

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custom/build.gradle

@@ -1,6 +1,6 @@
 plugins {
   id "java"
-  id "org.owasp.dependencycheck" version "12.1.3"
+  id "org.owasp.dependencycheck" version "12.1.5"
 }
 
 apply from: "$rootDir/gradle/checkstyle.gradle"