[flutter_releases] Roll pub for flutter-1.26-candidate.17

[christopherfujino]

A release branch specific recreation of #75370.

To create this PR, I applied branch-specific updates to packages/flutter_tools/lib/src/commands/update_packages.dart:

1. Removing the pins from the "Dart team owned nnbd deps"
2. Pinning any unrelated packages that would be upgraded
3. Created a special transitiveDepsAllowlist that allows pinning transitive deps (upstream, pinning transitive deps could lead to situations where version resolution fails).
4. Then ran flutter update-packages --force-upgrade.
5. Fix tools integration test by applying c100544

[flutter-dashboard]

This pull request was opened from and to a release candidate branch. This should only be done as part of the official Flutter release process. If you are attempting to make a regular contribution to the Flutter project, please close this PR and follow the instructions at Tree Hygiene for detailed instructions on contributing to Flutter.

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[flutter-dashboard]

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If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

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[dnfield]

LGTM - would appreciate a LGTM from a Dart ecosystem person to validate that these versions are the right ones too though

[christopherfujino]

Linux tool_integration_tests is failing because pub get resolving failed for an integration test. investigating now.

[christopherfujino]

Linux tool_integration_tests is failing because pub get resolving failed for an integration test. investigating now.

This is the upstream fix: c100544

[kevmoo]

Looks good!

[kevmoo]

@christopherfujino Some of these got messed up, sadly:

• archive should be at 3.0.0
• crypto should be an 3.0.0
• platform: 3.0.0
• process: 3.0.0
• sync_http 0.3.0
• webdriver: 3.0.0
• vm_service: 6.0.1-nullsafety.1
• file: 6.0.0

args and convert should get dropped then