Update Graphql dastProfileUpdate mutation

What does this MR do?

Changes:

Parent: !68050 (merged)

Update Graphql dastProfileUpdate mutation to include Dast Profile Schedule

After this MR, the frontend will be able to schedule Dast scans. The scans can be one time scans or can be set to repeat every day, every week, every month, every year, every 3 months or every 6 months.

#330308 (closed)

Notes

The sequence of Merge, we will start from merging top MR to the master:

1. !68031 (merged) -> Scheduling logic and DB changes
2. !68046 (merged) -> dastProfileCreate mutation
3. !68050 (merged) -> dastProfile fetch Query
4. !66445 (merged) -> dastProfileUpdate mutation

Graphql queries for testing

Update Dast Profile Schedule mutation

Click to expand

mutation dastProfileUpdate($input: DastProfileUpdateInput!) {
  dastProfileUpdate(input: $input) {
    dastProfile {
      editPath
    },
    pipelineUrl
    errors
  }
}

{
  "input": {
    "fullPath": "root/dast-test",
    "dastScannerProfileId": "gid://gitlab/DastScannerProfile/1",
    "dastSiteProfileId": "gid://gitlab/DastSiteProfile/1",
    "branchName": "main",
    "id": "gid://gitlab/Dast::Profile/53",
    "name": "A4.12",
    "runAfterUpdate": true,
    "dastProfileSchedule": {
      "startsAt": "Thu, 12 Aug 2021 06:48:50.845382000 UTC +00:00",
      "active": true,
      "cadence": {
        "duration": 1,
        "unit": "DAY"
      }
    }
  }
}

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Related to #330308 (closed)