feat(runner): implement test.for

[hi-ogawa]

Description

• closes Provide test context to test.each() #4642
• closes feat(runner): provide test context to test.each #4989 (supersedes)

test.for is an alternative API on test.each) (2nd one proposed in #4642 (comment)) to simplify TestContext integration.

todo

• docs

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Tests

• Run the tests with pnpm test:ci.

Documentation

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Changesets

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