build(java): enable blunderbuss for samples (#475)

This PR was generated using Autosynth. 🌈 Synth log will be available here: https://source.cloud.google.com/results/invocations/de101f5f-63ce-454a-b70d-36a3892916ea/targets - [ ] To automatically regenerate this PR, check this box. Source-Link: googleapis/synthtool@943bb78

Author: yoshi-automation

.github/blunderbuss.yml

@@ -0,0 +1,7 @@
+# Configuration for the Blunderbuss GitHub app. For more info see
+# https://github.com/googleapis/repo-automation-bots/tree/master/packages/blunderbuss
+assign_prs_by:
+- labels:
+ - samples
+ to:
+ - googleapis/java-samples-reviewers

synth.metadata

@@ -4,7 +4,7 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-firestore.git",
- "sha": "660368cad77d8ed36ac8e40e6ccdb6c7f0403da0"
+ "sha": "5b974804d4ba385e6c6c747b2c80fc6f4634eb16"
  }
  },
  {
@@ -19,7 +19,7 @@
  "git": {
  "name": "synthtool",
  "remote": "https://github.com/googleapis/synthtool.git",
- "sha": "68742c6016bf0d16948a572633d17955a8737414"
+ "sha": "943bb78606d035001123030067dffcc34f4645f2"
  }
  }
  ],
@@ -58,6 +58,7 @@
  ".github/ISSUE_TEMPLATE/feature_request.md",
  ".github/ISSUE_TEMPLATE/support_request.md",
  ".github/PULL_REQUEST_TEMPLATE.md",
+ ".github/blunderbuss.yml",
  ".github/generated-files-bot.yml",
  ".github/readme/synth.py",
  ".github/release-please.yml",