chore(java_templates): add default CODEOWNERS files for samples reviews (googleapis#156)

This PR was generated using Autosynth. 🌈 Synth log will be available here: https://source.cloud.google.com/results/invocations/cee9e42c-941c-49fe-b176-a9e83c067c7c/targets - [ ] To automatically regenerate this PR, check this box. Source-Link: googleapis/synthtool@8b65daa

Author: yoshi-automation

.github/CODEOWNERS

@@ -0,0 +1,8 @@
+# Code owners file.
+# This file controls who is tagged for review for any given pull request.
+
+# For syntax help see:
+# https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax
+
+# The java-samples-reviewers team is the default owner for samples changes
+samples/**/*.java @googleapis/java-samples-reviewers

synth.metadata

@@ -4,7 +4,7 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-tasks.git",
- "sha": "f16972c45e53cdd4b4015823fe4c3588539a1e7a"
+ "sha": "a4d056386ae70f243e87cfc1589ee8354cb7d711"
  }
  },
  {
@@ -19,7 +19,7 @@
  "git": {
  "name": "synthtool",
  "remote": "https://github.com/googleapis/synthtool.git",
- "sha": "5b48b0716a36ca069db3038da7e205c87a22ed19"
+ "sha": "8b65daa222d193b689279162781baf0aa1f0ffd2"
  }
  }
  ],