[BUG] extension recommends updating when packages are newer

[gcamp806]

If the packages in pubspec.yaml are more recent than what this plugin knows about, the plugin suggests the packages should be upgraded (which would actually be a downgrade).

Expected Behavior

If the packages in pubspec.yaml are newer, then the plugin should not display a warning

Current Behavior

bloc_test - please update to ^6.0.0
(however, the current version is ^7.0.6)
If the user clicks the "Update" button, then pubspec.yaml is downgrading the version and breaking other package dependencies.

Possible Solution

Ignore newer versions of the plugins

Steps to Reproduce

Open a project that uses newer versions of bloc, bloc_test, flutter_bloc

[KiritchoukC]

Hi @gcamp806,

I will look at this tomorrow and release a new version asap.

Thanks for raising this issue.