fix: Avoids runtime error: invalid memory address or nil pointer dereference when type!=DatabaseTrigger

[EspenAlbert]

Proposed changes

• Avoids runtime error: invalid memory address or nil pointer dereference when type!=DatabaseTrigger
• Support using MONGODB_REALM_BASE_URL in profile (necessary for testing with cloud-dev) similar implementation to TF

Link to any related issue(s): CLOUDP-282800

TODO:

1. Support running contract tests in CI

• To generate the inputs/ we need a new project and a cluster in Atlas
• We require an App with a Service and a function configured. Previously, done manually by following test readme instructions
• Then using export PROJECT_ID=5555555 APP_ID=44444444 DB_NAME=testDB COLLECTION_NAME=collection FUNC_NAME=funcn2 FUNC_ID=2222222 SERVICE_ID=111111 we can generate the inputs and run the contract tests
• Support using MONGODB_REALM_BASE_URL in profile (necessary for testing with cloud-dev)

2. Support release workflow (depending on how (1) is solved this might require some additional work)

Type of change:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as
  expected)
• This change requires a documentation update
• If changes include removal or addition of 3rd party GitHub actions, I updated our internal document. Reach out to the APIx Integration slack channel to get access to the internal document.

Manual QA performed:

• cfn invoke for each of CRUDL/cfn test
• Updated resource in example
• Published to AWS private registry
• Used the template in example to create and update a stack in AWS
• Deleted stack to ensure resources are deleted
• Created multiple resources in same stack
• Validated in Atlas UI
• Included screenshots

Required Checklist:

• I have signed the MongoDB CLA
• I have added tests that prove my fix is effective or that my feature works
• I have checked that this change does not generate any credentials and that they are NOT accidentally logged anywhere.
• I have added any necessary documentation (if appropriate)
• I have run make fmt and formatted my code
• For CFN Resources: I have released by changes in the private registry and proved by change
  works in Atlas

Further comments