Vanilla Dart images Need Updateing

[annawatson-wk]

Motivation/ Changes

As a part of the Dart 2.13 transition, FROM google/dart:2.7 needs to be changed over to FROM google/dart:2.13.

QA Checklist

• CI passes

Merge Checklist

While we perform many automated checks before auto-merging, some manual checks are needed:

• A Client Platform member has reviewed these changes
• There are no unaddressed comments - this check can be automated if reviewers use the "Request Changes" feature
• For release PRs - Version metadata in Rosie comment is correct

[aviary-wf]

Security Insights

No security relevant content was detected by automated scans.

Action Items

• Review PR for security impact; comment "security review required" if needed or unsure
• Verify aviary.yaml coverage of security relevant code

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Questions or Comments? Reach out on Slack: #support-infosec.

[kirkrichardson-wk]

+1

[annawatson-wk]

@Workiva/release-management-p

[rmconsole-wf]

+1 from RM