Update gcp-bucket and gcp-pubsub reference pages

[CarlosRS9]

During the manual testing it has been detected that there are several fixed to be applied in the reference page for both gcp-bucket and gcp-pubsub integrations. Specifically, the problems to review are the following:

Invalid configuration example for gcp-bucket

The following configuration example appears at the end of the documentation:

<gcp-bucket>
    <run_on_start>yes</run_on_start>
    <interval>1m</interval>
    <project_id>wazuh-dev</project_id>
    <subscription_name>wazuhdns</subscription_name>
    <credentials_file>wodles/gcp-bucket/credentials.json</credentials_file>
</gcp-bucket>

This configuration is invalid as it includes multiple parameters that are unique to pubsub, such as project_id or subscription_name. We need to replace this configuration with a valid one and check the rest of the documentation to make sure this error is not repeated on other pages.

Invalid descriptions for gcp-pubsub options

Some option descriptions are too ambiguous while others are just plain wrong. An example would be the credentials parameter, which states that it allows both relative (to $HOME_INSTALLATION) and absolute paths. This is not true. This particular option only accepts absolute paths.

We need to check the rest of the parameters to make sure there are no similar errors.

Missing valid examples for the gcp-pubsub and gcp-bucket options

Some option such as only_logs_after are missing valid examples to show the user how to use them.

Tasks

• [x] Review and update every gcp-bucket configuration example
• [x] Review and update the different parameters for gcp-bucket
• [x] Review and update the different parameters for gcp-pubsub

[GGP1]

Update

Invalid configuration example for gcp-bucket

This issue was fixed in https://github.com/wazuh/wazuh-documentation/pull/6509

Invalid descriptions for gcp-pubsub options

Relative paths are supported but they must be relative to $HOME_INSTALLATION, changed the phrasing to make it more clear.

Missing valid examples for the gcp-pubsub and gcp-bucket options

I think the options' descriptions should be explained in detail rather than including configuration examples for each one of them. I reviewed the existing descriptions and applied improvements where I considered appropriate.

[GGP1]

Update

Created a table for the bucket options and modified the order of the parameters to make them easier to read.

[GGP1]

Update

Applied code review suggestions.