Bump log4j-core from 2.11.2 to 2.14.1

Bumps log4j-core from 2.11.2 to 2.14.1.

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle

@@ -18,6 +18,6 @@ subprojects {
     dependencies {
         compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.11.2'
         runtime group: 'org.apache.logging.log4j', name: 'log4j-jul', version: '2.11.2'
-        testCompile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.11.2'
+        testCompile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.14.1'
     }
 }

db-migrations/build.gradle

@@ -5,7 +5,7 @@ dependencies {
     compile group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.9.8'
     compile group: 'org.flywaydb', name: 'flyway-core', version: '5.2.4'
     compile group: 'org.postgresql', name: 'postgresql', version: '42.2.5'
-    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version:'2.11.2'
+    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version:'2.14.1'
 
     testCompile project(path: ':persistence', configuration: 'testSupport')
 }

rest-api/build.gradle

@@ -44,7 +44,7 @@ dependencies {
     compile group: 'org.glassfish', name: 'javax.el', version: '3.0.1-b10'
     compile group: 'org.hibernate', name: 'hibernate-validator', version: '6.0.16.Final'
 
-    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.11.2'
+    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.14.1'
     compile group: 'org.apache.logging.log4j', name: 'log4j-slf4j-impl', version: '2.11.2'
     compile group: 'com.sparkjava', name: 'spark-core', version: '2.9.0'