Update dependency file_picker to v8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
file_picker (source)	dependencies	major	^6.1.1 -> ^8.0.0

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Release Notes

miguelpruivo/flutter_file_picker (file_picker)

v8.0.0+1

Compare Source

Removes linter warnings and fixes CI/CD.

v8.0.0

Compare Source

Removes linter warnings and fixes CI/CD.

v7.1.0+1

Compare Source

Fixes typo on docs (there was some refernces to FileType.all instead of the correct FileType.any).

v7.1.0

Fixes typo on docs (there was some refernces to FileType.all instead of the correct FileType.any).

v7.0.2

Desktop (Linux)

• File picker extensions for Linux Zenity are case insensitive now
• Fixes #​1322

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Configuration

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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: app/radio_qth_map/pubspec.lock

Command failed: flutter pub upgrade file_picker
Note: intl is pinned to version 0.19.0 by flutter_localizations from the flutter SDK.
See https://dart.dev/go/sdk-version-pinning for details.


Because radio_qth_map depends on flutter_localizations from sdk which depends on intl 0.19.0, intl 0.19.0 is required.
So, because radio_qth_map depends on intl ^0.18.1, version solving failed.


You can try the following suggestion to make the pubspec resolve:
* Try upgrading your constraint on intl: flutter pub add intl:^0.19.0