Build(deps): Bump ubuntu from 99c3519 to 278628f in /docker/seacas

Bumps ubuntu from `99c3519` to `278628f`.

---
updated-dependencies:
- dependency-name: ubuntu
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

docker/seacas/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:24.04@sha256:99c35190e22d294cdace2783ac55effc69d32896daaa265f0bbedbcde4fbe3e5
+FROM ubuntu:24.04@sha256:278628f08d4979fb9af9ead44277dbc9c92c2465922310916ad0c46ec9999295
 ARG DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && \
     apt-get install --no-install-recommends -y \