update github actions to include serializers package (#458)

* extract serializers to seperate package

* clean pubspec

* compat with new dio version, return uint8list in test mocks instead of list<int>

* add github actions to new serializers package

.github/dependabot.yaml

@@ -5,7 +5,7 @@
 
 version: 2
 updates:
-  - package-ecosystem: "" # See documentation for possible values
+  - package-ecosystem: "pub" # See documentation for possible values
     directory: "/" # Location of package manifests
     schedule:
       interval: "weekly"

.github/workflows/dart.yml

@@ -8,9 +8,10 @@ jobs:
       matrix:
         package:
           - gql
+          - gql_exec
+          - gql_code_builder_serializers
           - gql_build
           - gql_code_builder
-          - gql_exec
           - gql_link
           - gql_dedupe_link
           - gql_dio_link

.github/workflows/publish_alpha.yml

@@ -10,7 +10,7 @@ jobs:
       image: dart:latest
     if: github.ref == 'refs/heads/master'
     env:
-      PACKAGES: 'gql,gql_build,gql_code_builder,gql_dedupe_link,gql_dio_link,gql_exec,gql_http_link,gql_link,gql_pedantic,gql_transform_link,gql_error_link,gql_websocket_link'
+      PACKAGES: 'gql,gql_code_builder_serializers,gql_build,gql_code_builder,gql_dedupe_link,gql_dio_link,gql_exec,gql_http_link,gql_link,gql_pedantic,gql_transform_link,gql_error_link,gql_websocket_link'
     steps:
       - name: Clone repository
         uses: actions/checkout@v2