INTMDB-270: fix issue with project resource importer test

[abner-dou]

Description

Fixed Project Import test, field with_default_alerts_settings value now is ignored on import (currently the API doesn't return this value)

Link to any related issue(s):INTMDB-270

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
• Documentation fix/enhancement

Required Checklist:

• I have signed the MongoDB CLA
• I have read the Terraform contribution guidelines
• I have added tests that prove my fix is effective or that my feature works per HashiCorp requirements
• I have added any necessary documentation (if appropriate)
• I have run make fmt and formatted my code

Further comments

---

--- PASS: TestAccResourceMongoDBAtlasProject_importBasic (13.96s)
PASS
coverage: 2.5% of statements
ok github.com/mongodb/terraform-provider-mongodbatlas/mongodbatlas 16.563s coverage: 2.5% of statements
? github.com/mongodb/terraform-provider-mongodbatlas/version [no test files]

[themantissa]

Thank you for the quick turnaround.