[Qualys GAV] - Added support for exclude & include fields in the query params

[ShourieG]

Type of change

• Enhancement

Proposed commit message

Sometimes certain fields can be verbose and quite large in size, these often
slow down the performance and increase in ingestion time. In such scenarios we
need an option to filter in/out certain fields directly via query params. This
PR makes this behaviour possible.

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 [qualys_gav]: Add excludeFields and includeFields in the configuration #15159

Screenshots

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• Commit: c46c6ba

cc @ShourieG