Bump test from 1.25.5 to 1.25.8

[dependabot]

Bumps test from 1.25.5 to 1.25.8.

Release notes

Sourced from test's releases.

package:test v1.25.8

• Increase SDK constraint to ^3.4.0.
• Ensure we don't create files ending in a ., this breaks windows.

package:test v1.25.7

• Enable asserts for dart2wasm tests.

package:test v1.25.6

• Point API doc links to package:test canonical libraries.
• Fix testing with dart2wasm - use dart compile wasm instead of depending on SDK internals
• Update min SDK constraint to 3.2.0.

Commits

• c14ce93 Prepare to publish (#2250)
• 4da62ac Add package config URI into VM test entrypoints (#2245)
• 329c6df fix windows failures (#2244)
• 777631b Bump min Dart version to 3.4.0 for WASM (#2242)
• 83c597e enable asserts in dart2wasm tests (#2241)
• 6035380 Remove an unnecessary dynamic (#2239)
• 43ad4cd random cleanup (#2232)
• 18db77c prepare to publish test_api (#2238)
• cd72e8d Prepare to publish (#2237)
• b1b2c02 Fix dart run test -p chrome -c dart2wasm (#2233)
• Additional commits viewable in compare view

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[copybara-service]

https://dart-review.googlesource.com/c/homebrew-dart/+/378561 has been updated with the latest commits from this pull request.

[copybara-service]

https://dart-review.googlesource.com/c/homebrew-dart/+/378561 has been updated with the latest commits from this pull request.

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