Update to elastic/beats@49e8024953a4

[axw]

Motivation/summary

Update beats to bring in elastic/beats#20576.

Checklist

• I have signed the Contributor License Agreement.
• I have updated CHANGELOG.asciidoc

I have considered changes for:
- [ ] documentation
- [ ] logging (add log lines, choose appropriate log selector, etc.)
- [ ] metrics and monitoring (create issue for Kibana team to add metrics to visualizations, e.g. Kibana#44001)

• automated tests (add tests for the code changes, all unit tests pass locally)
  - [ ] telemetry
  - [ ] Elasticsearch Service (https://cloud.elastic.co)
  - [ ] Elastic Cloud Enterprise (https://www.elastic.co/products/ece)
  - [ ] Elastic Cloud on Kubernetes (https://www.elastic.co/elastic-cloud-kubernetes)

How to test these changes

PLATFORMS=linux/amd64 TYPES=docker mage package

Should build a ubi8-minimal based image: build/distributions/apm-server-ubi8-8.0.0-linux-amd64.docker.tar.gz

Related issues

#4066

[apmmachine]

💚 Build Succeeded

Expand to view the summary

Build stats

• Build Cause: [Pull request #4105 updated]

• Start Time: 2020-08-25T05:08:56.787+0000

• Duration: 46 min 21 sec

Test stats 🧪

Test	Results
Failed	0
Passed	3222
Skipped	142
Total	3364

Steps errors

Expand to view the steps failures

• Name: Compress

  • Description: tar --exclude=coverage-files.tgz -czf coverage-files.tgz coverage

  • Duration: 0 min 0 sec

  • Start Time: 2020-08-25T05:24:03.791+0000

  • log

• Name: Compress

  • Description: tar --exclude=system-tests-linux-files.tgz -czf system-tests-linux-files.tgz system-tests

  • Duration: 0 min 0 sec

  • Start Time: 2020-08-25T05:38:28.247+0000

  • log

• Name: Test Sync

  • Description: ./script/jenkins/sync.sh

  • Duration: 3 min 50 sec

  • Start Time: 2020-08-25T05:18:57.311+0000

  • log