Zerofox: Release version 1.0.0 as GA

[adriansr]

What does this PR do?

Updates the zerofox package to GA:

• Adds system tests.
• Fixes missing input.type field.
• Updates version to 1.0.0.
• Marked as GA.

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

#1562

[elasticmachine]

Pinging @elastic/security-external-integrations (Team:Security-External Integrations)

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2021-09-23T21:50:06.436+0000

• Duration: 11 min 11 sec

• Commit: 2e3059a

Test stats 🧪

Test	Results
Failed	0
Passed	4
Skipped	0
Total	4

🤖 GitHub comments

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[leehinman]

LGTM