fix: bump docker plugin to fix a scan bug

Author: bgardiner

package-lock.json

@@ -117,7 +117,7 @@
     "semver": "^6.0.0",
     "snyk-config": "^5.0.0",
     "snyk-cpp-plugin": "2.24.1",
-    "snyk-docker-plugin": "8.5.0",
+    "snyk-docker-plugin": "8.8.0",
     "snyk-go-plugin": "1.23.0",
     "snyk-gradle-plugin": "5.1.0",
     "snyk-module": "3.1.0",