Dependencies: Update javax.mail in watcher to 1.6.2 (#33664)

x-pack/plugin/watcher/build.gradle

@@ -35,7 +35,7 @@ dependencies {
     // watcher deps
     compile 'com.googlecode.owasp-java-html-sanitizer:owasp-java-html-sanitizer:r239'
     compile 'com.google.guava:guava:16.0.1' // needed by watcher for the html sanitizer and security tests for jimfs
-    compile 'com.sun.mail:javax.mail:1.5.6'
+    compile 'com.sun.mail:javax.mail:1.6.2'
     // HACK: java 9 removed javax.activation from the default modules, so instead of trying to add modules, which would have
     // to be conditionalized for java 8/9, we pull in the classes directly
     compile 'javax.activation:activation:1.1.1'

x-pack/plugin/watcher/licenses/javax.mail-1.5.6.jar.sha1

@@ -1 +0,0 @@
-ab5daef2f881c42c8e280cbe918ec4d7fdfd7efe

x-pack/plugin/watcher/licenses/javax.mail-1.6.2.jar.sha1

@@ -0,0 +1 @@
+935151eb71beff17a2ffac15dd80184a99a0514f