[sql_input] Update manifest format_version to 3.*

[mykola-elastic]

Proposed commit message

See title

• Change format_version to 3.3.2
• Change the type of metrics.* from object to keyword (we cannot have type: object without object_type: ... in format_version 3.*)
• Change system tests and sample_event.json to always have/return strings (varchar) in metrics.* (to match keyword type)

The type of metrics.* doesn't matter much because it is the responsibility of the user to define custom mappings. metrics.* only exists for system tests.

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.
• I have verified that any added dashboard complies with Kibana's Dashboard good practices

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Closes https://github.com/elastic/obs-integration-team/issues/351

Screenshots

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 6efe340

History

• 💚 Build #27498 succeeded 52793e1
• 💔 Build #27496 failed 3e9a0b7
• 💔 Build #27470 failed 366d905
• 💔 Build #27465 failed e1169f8
• 💔 Build #27462 failed cf64554

cc @mykola-elastic

[elastic-sonarqube]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube

[ishleenk17]

the sample event does't have any fields from the query we are using now ?