[image_picker] use nnbd version of deps to resolve ci failure (#3580)
[image_picker] use nnbd version of deps to resolve ci failure (#3580)


flutter/plugins,flutter/plugins,tvolkert/plugins,flutter/plugins,tvolkert/plugins,flutter/plugins,flutter/plugins,flutter/plugins,tvolkert/plugins,flutter/plugins,flutter/plugins,tvolkert/plugins