fixup! CI: increase lowest tested Dart (3.5.4) and Flutter (3.24.5) SDK

Author: greenrobot-team

.github/workflows/test.yml

@@ -117,10 +117,10 @@ jobs:
           # build with highest supported JDK on latest Flutter SDK,
           # lowest supported JDK on lowest supported Flutter SDK.
           - os: ubuntu-24.04
-            flutter-version: 3.24.2
+            flutter-version: 3.29.2
             jdk: 21
           - os: ubuntu-24.04
-            flutter-version: 3.16.9
+            flutter-version: 3.24.5 # Use latest bugfix release to get tooling fixes
             jdk: 17
     runs-on: ${{ matrix.os }}
     steps: