readme install bump version

[bruno-garcia]

📜 Description

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• I updated the docs if needed
• All tests passing
• No breaking changes

🔮 Next steps

[github-actions]

	Fails
🚫	Please consider adding a changelog entry for the next release.

Instructions and example for changelog

Please add an entry to CHANGELOG.md to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

## Unreleased

- readme install bump version ([#145](https://github.com/getsentry/sentry-dart-plugin/pull/145))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description.

Generated by 🚫 dangerJS against 76a7c5b

[marandaneto]

@bruno-garcia ^1.0.0 includes 1.0.0 and above and is lower than 2.0.0, so it's not needed, otherwise, we'd have to fix the readme in every minor.