fixed error with flutter pub get during workflow

fixed error with `flutter pub get` during workflow

updated modal_bottom_sheet version due to issues with flutter

formatted file

updated packages and sdk version

updated packages

changed modal_bottom_sheet version

Revert "changed modal_bottom_sheet version"

This reverts commit 89030b1.

Revert "updated packages"

This reverts commit f255089.

Revert "updated packages and sdk version"

This reverts commit 94fa9e6.

Update pubspec.yaml

Update pubspec.yaml