Updated to SDK 2.19.6 (#8172)

frameworks/Dart/angel3/angel3-mysql.dockerfile

@@ -1,4 +1,4 @@
-FROM dart:2.18.1
+FROM dart:2.19.6
 
 COPY ./orm-mysql/config /app/config
 COPY ./orm-mysql/lib /app/lib

frameworks/Dart/angel3/angel3.dockerfile

@@ -1,4 +1,4 @@
-FROM dart:2.18.1
+FROM dart:2.19.6
 
 COPY ./orm/config /app/config
 COPY ./orm/lib /app/lib

frameworks/Dart/angel3/benchmark_config.json

@@ -21,7 +21,7 @@
         "webserver": "None",
         "os": "Linux",
         "database_os": "Linux",
-        "display_name": "Angel3",
+        "display_name": "Angel3_postgresql",
         "notes": "",
         "versus": "None"
       },
@@ -43,7 +43,7 @@
         "webserver": "None",
         "os": "Linux",
         "database_os": "Linux",
-        "display_name": "Angel3",
+        "display_name": "Angel3_mysql",
         "notes": "",
         "versus": "None"
       }