Add a badge for vulnerabilities auto-dismissed by a policy

What does this MR do and why?

When a vulnerability gets auto-dismissed by a vulnerability management policy, display a badge in the activity column of the Vulnerability Report.

References

• GraphQL field added in Add policyAutoDismissed GraphQL field for vulne... (!214704 - merged)
• Worker that triggers AutoDismissService based on SBOM vulnerability creation: Add `AutoDismissWorker` to trigger based on Vul... (!214531 - merged)
• Integration of AutoDismissService into IngestReportsService: Integrate AutoDismissService into IngestReports... (!214673 - merged)

Screenshots or screen recordings

Before (or without FF)	After

How to set up and validate locally

1. In rails console enable the feature flag

   Feature.enable(:auto_dismiss_vulnerability_policies)

2. Create a project
3. Create an auto-dismiss policy:

   vulnerability_management_policy:
   - name: Auto-dismiss acceptable secrets
     description: Auto-dismiss secrets
     enabled: true
     actions:
     - type: auto_dismiss
       dismissal_reason: not_applicable
     rules:
     - type: detected
       criteria:
       - type: file_path
         value: ".env"

4. Add .gitlab-ci.yml with secret detection

   include:
   - template: Jobs/Secret-Detection.latest.gitlab-ci.yml    

5. Add two secrets in the main branch:
   1. .env:

      AWS_TOKEN=AKIAZYONPI3G4JNCCWGQ

   2. .env2:

      AWS_TOKEN=AKIAZYONPI3G4JNCCWGA

6. Wait until the pipeline on main finishes
7. In the rails console, run the service manually, passing the latest pipeline ID and the two vulnerability IDs:

   Vulnerabilities::AutoDismissService.new(Ci::Pipeline.find(<pipeline_id>), [vuln_1_id, vuln_2_id]).execute

8. Open the Vulnerability Report, remove the default state filter and verify that the secret from .env got dismissed and there is an activity comment stating the details.

MR acceptance checklist

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Related to #581388