Resource to "Ticketing and GitHub Issues"

[sibuthomasmathew]

Integration to "Ticketing and GitHub Issues" is missing

Ref: https://mondoo.com/docs/platform/ticketing/setup-github/index.html

[vjeffrey]

need to add resource for github ticketing integration (similar to https://github.com/mondoohq/terraform-provider-mondoo/blob/main/internal/provider/integration_jira_resource.go)

naming: to not confuse with scanning integration mondoo_ticketing_github

while we're here, we should rename the jira one to align with the ticketing name. here's an example of renaming a resource: #299