Update dependency rxdart_ext to ^0.3.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
rxdart_ext (source)	dependencies	minor	^0.2.9 → ^0.3.0

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Release Notes

hoc081098/rxdart_ext (rxdart_ext)

v0.3.0

Compare Source

• Accept Dart SDK versions above 3.0 (sdk: '>=2.12.0 <4.0.0').

• Only support rxdart: ^0.28.0.

• state_stream and not_replay_value_stream:

  • Implement lastEventOrNull for NotReplayValueStream and StateStream.

• single:

  • RxSingles.using
    • Convert all required positional parameters to required named parameters.
    • The disposer is now called after the future returned from StreamSubscription.cancel completes.
  • Remove Single.fromStream constructor, use Single.unsafeFromStream instead.

• Docs: update broken doc link (thanks to @​dungngminh).

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: pubspec.lock

Command failed: flutter pub upgrade rxdart_ext
Because http_client_hoc081098 0.0.1-dev.0 depends on rxdart_ext ^0.2.0 and no versions of http_client_hoc081098 match >0.0.1-dev.0 <0.1.0, http_client_hoc081098 ^0.0.1-dev.0 requires rxdart_ext ^0.2.0.
So, because rx_mobile_team depends on both rxdart_ext ^0.3.0 and http_client_hoc081098 ^0.0.1-dev.0, version solving failed.


You can try the following suggestion to make the pubspec resolve:
* Consider downgrading your constraint on rxdart_ext: flutter pub add rxdart_ext:^0.2.9
Failed to update packages.