Add support for security policy project for Projects::CreateService

What does this MR do?

Addresses #335661 (closed) and based on !65830 (comment 630697095)

As a part of &5362 (closed), a GraphQL mutation was introduced to create security policy project for a given project. The newly created project should have the default branch protected and it should override the default branch protection configured for the group and only maintainers should have access to merge and no one having access to push to the default branch. But there was a bug in creating protected branch. The bug due to race-condition in creating protected branch for security policy project was because there were 2 independent write paths. But the fix to the race-condition as implemented in !65830 (closed) had performance problems because of transaction.

This MR moves the creation of security_orchestration_policy_configuration for the new project to Projects::CreateService by introducing a new parameter security_policy_target_project_id. This helps Projects::ProtectDefaultBranchService to check if the newly created project has security_orchestration_policy_configuration and override the branch protection rules. This is implemented in !66441 (merged) and this MR depends on !66441 (merged).

Screenshots or Screencasts (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

• I have included changelog trailers, or none are needed. (Does this MR need a changelog?)
• I have added/updated documentation, or it's not needed. (Is documentation required?)
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• I have self-reviewed this MR per code review guidelines.
• This MR does not harm performance, or I have asked a reviewer to help assess the performance impact. (Merge request performance guidelines)
• I have followed the style guides.
• This change is backwards compatible across updates, or this does not apply.

Availability and Testing

• I have added/updated tests following the Testing Guide, or it's not needed. (Consider all test levels. See the Test Planning Process.)
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• I have informed the Infrastructure department of a default or new setting change per definition of done, or it's not needed.

Security

Does this MR contain changes to processing or storing of credentials or tokens, authorization and authentication methods or other items described in the security review guidelines? If not, then delete this Security section.

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team