[3.10] gh-90549: Fix leak of global named resources using multiprocessing spawn (GH-30617)

[miss-islington]

Co-authored-by: XD Trol milestonejxd@gmail.com
Co-authored-by: Antoine Pitrou pitrou@free.fr
(cherry picked from commit 30610d2)

Co-authored-by: Leo Trol milestone.jxd@gmail.com

[ghost]

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[miss-islington]

@jxdabc and @pitrou: Status check is done, and it's a failure ❌ .

[miss-islington]

@jxdabc and @pitrou: Status check is done, and it's a failure ❌ .

[miss-islington]

@jxdabc and @pitrou: Status check is done, and it's a failure ❌ .

[miss-islington]

Status check is done, and it's a success ✅ .

[jxdabc]

@jxdabc and @pitrou: Status check is done, and it's a failure.

CLA Fixed.

[bedevere-bot]

🤖 New build scheduled with the buildbot fleet by @pitrou for commit fa9a91a 🤖

If you want to schedule another build, you need to add the ":hammer: test-with-buildbots" label again.

[miss-islington]

@jxdabc and @pitrou: Status check is done, and it's a pending ❌ .

[miss-islington]

@jxdabc and @pitrou: Status check is done, and it's a pending ❌ .

[miss-islington]

@jxdabc and @pitrou: Status check is done, and it's a pending ❌ .

[miss-islington]

@jxdabc and @pitrou: Status check is done, and it's a pending ❌ .

[miss-islington]

@jxdabc and @pitrou: Status check is done, and it's a pending ❌ .

[miss-islington]

Status check is done, and it's a success ✅ .