Bump dependency-check-gradle from 1.4.0 to 5.1.0 (appium#1175)

Bumps [dependency-check-gradle](https://github.com/jeremylong/dependency-check-gradle) from 1.4.0 to 5.1.0. - [Release notes](https://github.com/jeremylong/dependency-check-gradle/releases) - [Commits](dependency-check/dependency-check-gradle@v1.4.0...v5.1.0) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

build.gradle

@@ -19,7 +19,7 @@ buildscript {
  mavenCentral()
  }
  dependencies {
- classpath 'org.owasp:dependency-check-gradle:1.4.0'
+ classpath 'org.owasp:dependency-check-gradle:5.1.0'
  classpath 'com.github.jengelman.gradle.plugins:shadow:5.1.0'
  }
 }