chore(deps): bump commons-validator from 1.6 to 1.7 (appium#1382)

Bumps commons-validator from 1.6 to 1.7. Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

build.gradle

@@ -77,7 +77,7 @@ dependencies {
  compile 'com.google.code.gson:gson:2.8.6'
  compile 'org.apache.httpcomponents:httpclient:4.5.12'
  compile 'cglib:cglib:3.3.0'
- compile 'commons-validator:commons-validator:1.6'
+ compile 'commons-validator:commons-validator:1.7'
  compile 'org.apache.commons:commons-lang3:3.11'
  compile 'commons-io:commons-io:2.7'
  compile 'org.springframework:spring-context:5.2.8.RELEASE'