Get the dist-zips building nicely again

Author: shs96c

java/client/src/org/openqa/selenium/BUILD.bazel

@@ -56,6 +56,7 @@ java_dist_zip(
         ":client-combined",
     ],
     third_party_prefixes = [
+        "@maven//",
         "//third_party",
     ]
 )

java/server/src/org/openqa/selenium/grid/BUILD.bazel

@@ -58,6 +58,7 @@ java_dist_zip(
         ":grid",
     ],
     third_party_prefixes = [
+        "@maven//",
         "//third_party",
     ]
 )