feat: [IGNR-1709] Add source in payload

[harshdev93]

Description:

This PR adds source in the payload for creating an ignore request. The source can be IDE/CLI depending on where the request is from. The source is determined from RuntimeInfo.

Jira: https://snyksec.atlassian.net/browse/IGNR-1709

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[rrama]

Can we not just send up the runtimeName instead of having this hard-coded string switching here? As this will break if another GAF consumer is added. For instance if we allow the MCP server to send up ignore approval requests.

[rrama]

I wouldn't be opposed to a runtimeInfo.GetUserFriendlyName() being added, but that would require further coordination and approval from others.

[harshdev93]

We only want to identify if the request is from cli/ide, any other request source will be defaulted to Source : api. As long as Runtime names for cli/ide don't change, I think it works for us.