build(test): recursively find test files; fail on unsupported depende…

…ncy versions (#209)

This PR was generated using Autosynth. 🌈

Synth log will be available here:
https://source.cloud.google.com/results/invocations/28f926df-4479-489a-b60f-ecf7782e1eb7/targets

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

Source-Link: googleapis/synthtool@fdd03c1

packages/google-cloud-datacatalog/.mocharc.js

@@ -14,7 +14,8 @@
 const config = {
  "enable-source-maps": true,
  "throw-deprecation": true,
- "timeout": 10000
+ "timeout": 10000,
+ "recursive": true
 }
 if (process.env.MOCHA_THROW_DEPRECATION === 'false') {
  delete config['throw-deprecation'];

packages/google-cloud-datacatalog/synth.metadata

@@ -4,7 +4,7 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/nodejs-datacatalog.git",
- "sha": "b3b114298ab5de12b41a30cf7bb5d5c3e1692ee7"
+ "sha": "44023920149072e11f8e6eee3b9c5573ad3a80c9"
  }
  },
  {
@@ -19,7 +19,7 @@
  "git": {
  "name": "synthtool",
  "remote": "https://github.com/googleapis/synthtool.git",
- "sha": "8cf6d2834ad14318e64429c3b94f6443ae83daf9"
+ "sha": "fdd03c161003ab97657cc0218f25c82c89ddf4b6"
  }
  }
  ],