[Cloud Security ]add observer.vendor to cloud_security_posture package version 1.10

[maxcold]

Proposed commit message

Backport of the #10945 into currently released 1.10 package version as per requirement in elastic/kibana#188802

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.
• I have verified that Kibana version constraints are current according to guidelines.

Author's Checklist

• [ ]

How to test this PR locally

• build with elastic-package build
• run stack with this package via elastic-package stack up -v -d
• ingest data into findings and vulnerability datastream, check that observer.vendor is provided

Related issues

• contributes to Add source to ingest pipeline  kibana#188802

Screenshots

[elasticmachine]

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[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: a8d4c61

History

• 💚 Build #15533 succeeded b868e48

[elastic-sonarqube]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
22.2% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube

[maxcold]

tested on a 8.15.1 production deployment: installed 1.10.0 integration, then upgraded to 1.10.1 (installing via elastic-package) , after some time the index mapping and data view picked up observer.vendor field