Merge pull request #1877 from snyk/fix/ignore-gradle-caches

fix: exclude gradle/cache path when extracting jars

Author: RotemS

package.json

@@ -117,7 +117,7 @@
     "semver": "^6.0.0",
     "snyk-config": "4.0.0",
     "snyk-cpp-plugin": "2.2.1",
-    "snyk-docker-plugin": "4.20.1",
+    "snyk-docker-plugin": "4.20.2",
     "snyk-go-plugin": "1.17.0",
     "snyk-gradle-plugin": "3.14.4",
     "snyk-module": "3.1.0",