[zeek] Upgrade ECS to 8.0.0

[r00tu53r]

Automated PR.

Upgrades ECS to 8.0.0.

[elasticmachine]

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

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2022-01-06T01:36:42.959+0000

• Duration: 63 min 24 sec

• Commit: baa1f26

Test stats 🧪

Test	Results
Failed	0
Passed	201
Skipped	0
Total	201

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💚 Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

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Build stats

• Start Time: 2022-01-24T02:00:00.058+0000

• Duration: 63 min 25 sec

• Commit: 2b0eee7

Test stats 🧪

Test	Results
Failed	0
Passed	201
Skipped	0
Total	201

🤖 GitHub comments

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

• /test : Re-trigger the build.