Update dependencies

[Zazo032]

Fixes #226

[codecov[bot]]

Codecov Report

Base: 93.02% // Head: 93.02% // No change to project coverage :thumbsup:

Coverage data is based on head (7331727) compared to base (1eb79bc). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #225 +/- ## ======================================= Coverage 93.02% 93.02% ======================================= Files 10 10 Lines 960 960 ======================================= Hits 893 893 Misses 67 67 ``` | [Impacted Files](https://codecov.io/gh/larryaasen/upgrader/pull/225?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Larry+Aasen) | Coverage Δ | | |---|---|---| | [lib/src/alert\_style\_widget.dart](https://codecov.io/gh/larryaasen/upgrader/pull/225/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Larry+Aasen#diff-bGliL3NyYy9hbGVydF9zdHlsZV93aWRnZXQuZGFydA==) | `87.50% <100.00%> (ø)` | | | [lib/src/appcast.dart](https://codecov.io/gh/larryaasen/upgrader/pull/225/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Larry+Aasen#diff-bGliL3NyYy9hcHBjYXN0LmRhcnQ=) | `87.62% <100.00%> (ø)` | | | [lib/src/upgrader.dart](https://codecov.io/gh/larryaasen/upgrader/pull/225/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Larry+Aasen#diff-bGliL3NyYy91cGdyYWRlci5kYXJ0) | `90.18% <100.00%> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Larry+Aasen). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Larry+Aasen)

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[Zazo032]

@larryaasen this PR aims to fix the following issue:

Because upgrader 4.8.0 depends on package_info_plus ^1.3.0 and no versions of upgrader match >4.8.0 <5.0.0, upgrader ^4.8.0 requires package_info_plus ^1.3.0.
So, because <project> depends on both package_info_plus ^2.0.0 and upgrader ^4.8.0, version solving failed.
pub get failed (1; So, because <project> depends on both package_info_plus ^2.0.0 and upgrader ^4.8.0, version solving failed.)

[larryaasen]

@Zazo032 I just created a prerelease version 5.0.0-alpha.1 with all packages updated to the latest version, and requiring Flutter version 3.0.1 or above. Check it out and let me know if it works for you. https://pub.dev/packages/upgrader/versions/5.0.0-alpha.1

[Zazo032]

Just tried version 5.0.0-alpha.1 - seems to be fine now, I could update all our dependenies to latest versions, thanks!

Should I close this PR then?

[larryaasen]

@Zazo032 Yes please. I have a regular release coming out soon.