blast_repo fixes (dart-archive/appengine#163)

* blast_repo fixes

dependabot

* rev sdk constraint

Author: devoncarew

pkgs/appengine/.github/dependabot.yaml

@@ -2,7 +2,9 @@
 version: 2
 
 updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
+  - package-ecosystem: github-actions
+    directory: /
     schedule:
-      interval: "monthly"
+      interval: monthly
+    labels:
+      - autosubmit

pkgs/appengine/CHANGELOG.md

@@ -1,5 +1,10 @@
+## 0.13.6-wip
+
+* Require Dart 2.19.
+
 ## 0.13.5
- * Added topics to `pubspec.yaml`.
+
+* Added topics to `pubspec.yaml`.
 
 ## 0.13.4
 

pkgs/appengine/pubspec.yaml

@@ -1,15 +1,16 @@
 name: appengine
-version: 0.13.5
+version: 0.13.6-wip
 description: >
   Support for using Dart as a custom runtime on Google App Engine Flexible
   Environment
 repository: https://github.com/dart-lang/appengine
+
 topics:
- - cloud
- - gcp
+  - cloud
+  - gcp
 
 environment:
-  sdk: '>=2.14.0 <3.0.0'
+  sdk: '>=2.19.0 <3.0.0'
 
 dependencies:
   fixnum: ^1.0.0