Bump auto remediation MR limit to 30

What does this MR do and why?

Bump auto-remediation MR limit to 30

Changelog: changed
EE: true

How to validate

mutation CreateDsAutoRemediationProfile {
  securityScanProfileCreate(
    input: {
      namespaceId:"gid://gitlab/Group/<GROUP_ID>"
      scanType: DEPENDENCY_SCANNING_POST_PROCESSING
      name: "DS auto-remediation (30 MRs)"
      description: "Dependency scanning auto-remediation with up to 30 open MRs"
      triggers: [
        {
          triggerType: SBOM_INGESTED
          configuration: {
            dependencyScanningPostProcessing: {
              autoRemediation: {
                enabled: true
                openMergeRequestsLimit: 30
              }
            }
          }
        }
      ]
    }
  ) {
    errors
    scanProfile {
      id
      name
      scanType
      triggers
    }
  }
}

MR acceptance checklist

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