Release Apache for Kibana 8

[jsoriano]

What does this PR do?

Release a version of the Apache package compatible with the 8 version of the stack.

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• If I'm introducing a new feature, I have modified the Kibana version constraint in my package's manifest.yml file to point to the latest Elastic stack release (e.g. ^7.13.0).

Related issues

• Add guidelines about the supported version of the stack elastic-package#571

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2021-11-08T12:49:33.146+0000

• Duration: 15 min 16 sec

• Commit: ccfb8b6

Test stats 🧪

Test	Results
Failed	0
Passed	43
Skipped	0
Total	43

🤖 GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

[jsoriano]

/test

[elasticmachine]

Pinging @elastic/integrations (Team:Integrations)

[mtojek]

PR reference is missing here.

[jsoriano]

Good catch.