build(java): skip lint on samples directory (#150)

This PR was generated using Autosynth. 🌈

Synth log will be available here:
https://source.cloud.google.com/results/invocations/d76bfbb4-fde1-4909-a913-608cdb170a49/targets

- [ ] To automatically regenerate this PR, check this box.

Source-Link: googleapis/synthtool@9872708

.kokoro/build.sh

@@ -51,9 +51,7 @@ test)
     RETURN_CODE=$?
     ;;
 lint)
-    mvn \
-      -Penable-samples \
-      com.coveo:fmt-maven-plugin:check
+    mvn com.coveo:fmt-maven-plugin:check
     RETURN_CODE=$?
     ;;
 javadoc)

synth.metadata

@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-shared-config.git",
-        "sha": "a33cbd4653796046621af5857ce1161ae180c75c"
+        "sha": "ded3ce9d4e8b4c69daca6c175eeaf319d36e97b9"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "cac9eef310652bf138dd76b716e4986e757d62ac"
+        "sha": "987270824bd26f6a8c716d5e2022057b8ae7b26e"
       }
     }
   ]