Dependency updates

[jmakar-s1]

From CT-554

From the Snyk report:

• rake, yajl-ruby and rexml updated based on the corresponding dependabot PRs
  • This is why the version numbers are slightly higher than those specified by the Snyk report
• Also took the liberty of bumping fluentd based on another dependabot PR
• Will close out those PRs once this code in merged / released

Testing notes:

• Add the following to /etc/td-agent/td-agent.conf

  <match scalyr.*>
  @type scalyr
  api_write_token <api-write-token>
  scalyr_server https://qatesting.scalyr.com
  </match>

• systemctl restart td-agent
• tail -F -n0 /var/log/td-agent/td-agent.log
• curl -i -d 'json={"<field1>":<value1>,...}' http://127.0.0.1:8888/scalyr.<tag>
• Now can search for the entry in Dataset using various queries:
  • <field1>=<value1>
  • logfile=/fluentd/scalyr.<tag>
  • serverIP=<external ip>
  • threadId=scalyr.<tag>

[jmakar-s1]

@joseph-makar Remember to delete the dependabot PRs when this is merged

[jmakar-s1]

Yes sir afaik. I didn't explicitly test old versions but I didn't see anything that would indicate problems in fluentd changelog either.