fix(sec): upgrade org.elasticsearch:elasticsearch to 7.14.0

[lxxawfl]

What happened？

There are 8 security vulnerabilities found in org.elasticsearch:elasticsearch 7.3.0

• CVE-2019-7619
• CVE-2020-7020
• CVE-2020-7009
• CVE-2020-7014
• CVE-2021-22144
• CVE-2020-7021
• CVE-2021-22137
• CVE-2021-22135

What did I do？

Upgrade org.elasticsearch:elasticsearch from 7.3.0 to 7.14.0 for vulnerability fix

What did you expect to happen？

Ideally, no insecure libs should be used.

The specification of the pull request

PR Specification from OSCS

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[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}