chore(deps): bump telnet-client from 2.2.5 to 2.2.6 (#724)

Bumps [telnet-client](https://github.com/mkozjak/node-telnet-client) from 2.2.5 to 2.2.6.
- [Commits](https://github.com/mkozjak/node-telnet-client/compare/v2.2.5...v2.2.6)

---
updated-dependencies:
- dependency-name: telnet-client
  dependency-version: 2.2.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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package.json

@@ -64,7 +64,7 @@
         "long": "5.3.2",
         "minimist": "1.2.8",
         "seek-bzip": "2.0.0",
-        "telnet-client": "2.2.5",
+        "telnet-client": "2.2.6",
         "varint": "6.0.0"
     },
     "devDependencies": {