packages Roller breakage 
https://ci.chromium.org/ui/p/flutter/builders/try/Linux_android%20android_build_all_packages%20master/5504/overview
Fixes flutter/flutter/issues/141897
```
FAILURE: Build failed with an exception.

* Where:
Script '/b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/groovy/flutter.groovy' line: 168

* What went wrong:
Could not compile script '/b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/groovy/flutter.groovy'.
> startup failed:
  script '/b/s/w/ir/x/w/flutter/packages/flutter_tools/gradle/src/main/groovy/flutter.groovy': 168: primitive type parameters not allowed here;
     solution: use the corresponding wrapper type, such as Integer for int @ line 168, column 41.
     e static final Map<String, int> ABI_VERS
```

Covered by tests in packages.