Update docker-java to 3.2.8 (#3980)

Author: bsideup

core/build.gradle

@@ -180,9 +180,9 @@ dependencies {
 
     compile 'org.rnorth.visible-assertions:visible-assertions:2.1.2'
 
-    compile "com.github.docker-java:docker-java-api:3.2.7"
+    compile "com.github.docker-java:docker-java-api:3.2.8"
 
-    shaded ('com.github.docker-java:docker-java-core:3.2.7') {
+    shaded ('com.github.docker-java:docker-java-core:3.2.8') {
         exclude(group: 'com.github.docker-java', module: 'docker-java-api')
         exclude(group: 'com.github.docker-java', module: 'docker-java-transport')
         exclude(group: 'com.fasterxml.jackson.core', module: 'jackson-annotations')
@@ -191,13 +191,13 @@ dependencies {
         exclude(group: 'org.apache.commons', module: 'commons-compress')
     }
 
-    shaded ('com.github.docker-java:docker-java-transport-okhttp:3.2.7') {
+    shaded ('com.github.docker-java:docker-java-transport-okhttp:3.2.8') {
         exclude(group: 'com.github.docker-java', module: 'docker-java-core')
         exclude(group: 'net.java.dev.jna')
         exclude(group: 'org.slf4j')
     }
 
-    compile 'com.github.docker-java:docker-java-transport-zerodep:3.2.7'
+    compile 'com.github.docker-java:docker-java-transport-zerodep:3.2.8'
 
     shaded "org.yaml:snakeyaml:1.27"