chore: update aws cert bundle

[meagharty]

Summary of changes

Asana Ticket: No ticket

Deploy to dev is failing on merge to main: https://github.com/mbta/arrow/actions/runs/10832864737/job/30058252111

  > [elixir-builder  5/25] RUN echo "d72191eaa5d48fe2b6e044a0ae0b0e9f35e325b34b1ecab6ffe11d490d5cdb8f /root/aws-cert-bundle.pem" | sha256sum -c -:
0.253 /root/aws-cert-bundle.pem: FAILED
0.253 sha256sum: WARNING: 1 computed checksum did NOT match

curl https://truststore.pki.rds.amazonaws.com/global/global-bundle.pem | shasum -a 256

Reviewer Checklist

• Meets ticket's acceptance criteria
• Any new or changed functions have typespecs
• Tests were added for any new functionality (don't just rely on Codecov)
• This branch was deployed to the staging environment and is currently running with no unexpected increase in warnings, and no errors or crashes.

[meagharty]

Successful deploy to dev: https://github.com/mbta/arrow/actions/runs/10833042679/job/30058848589

[Whoops]

I just did this a few weeks ago. If this keeps happening we probably want to re-examine how much benefit we're getting from this check.