Bump dart from `86d317e` to `e0925c4` in /auto_submit (#2466)

Bumps dart from `86d317e` to `e0925c4`.

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/auto_submit/Dockerfile b/auto_submit/Dockerfile
index a986fcd..1e0ebac 100644
--- a/auto_submit/Dockerfile
+++ b/auto_submit/Dockerfile
@@ -4,7 +4,7 @@
 
 
 # Dart Docker official images can be found here: https://hub.docker.com/_/dart
-FROM dart:beta@sha256:86d317e7e92835424db0263cd0cef52c7317aac51925846ead49178b7108189a
+FROM dart:beta@sha256:e0925c43f5f6a714cde3e8fd27d507963ee41293400fb013b28be4dc51d022db
 
 WORKDIR /app