[vitest-pool-workers] Support Vitest 3.2.x

[cjlawson02]

Describe the solution

workers-sdk/packages/vitest-pool-workers/package.json

Lines 78 to 81 in 3383021

	"peerDependencies": {
	"@vitest/runner": "2.0.x - 3.1.x",
	"@vitest/snapshot": "2.0.x - 3.1.x",
	"vitest": "2.0.x - 3.1.x"

Update @cloudflare/vitest-pool-workers to support 3.2.x

Release notes: https://github.com/vitest-dev/vitest/releases/tag/v3.2.0

[cjlawson02]

Related: #9439