Patch sprintf in uWebsockets to use snprintf

[DellaBitta]

Description

Provide details of the change, and generalize the change in the PR title above.

The latest Xcode tools have deprecated the use of sprintf. Use of that functions now produces warnings, and our builds treat such warnings as errors.

uWebSockets uses sprintf in one location.

This change updates the git patch that we already apply to uWebSockets sources to also update its use of sprintf to use snprintf instead. Thankfully, the size of the buffer that sprintf was writing into was readily available.

Note: we can't push this change back to uWebSockets as they've since rewritten the library.

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Testing

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Integration CI
Packaged Build -> Integration CI

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Type of Change

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• Bug fix. Add the issue # below if applicable.
• New feature. A non-breaking change which adds functionality.
• Other, such as a build process or documentation change.

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[github-actions]

❌  Integration test FAILED

Requested by @DellaBitta on commit b4f9e0b
Last updated: Fri Dec 9 13:58 PST 2022
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Failures	Configs
firestore	[TEST] [FLAKINESS] [Android] [1/3 os: ubuntu] [1/2 android_device: android_target] (1 failed tests)   CRASH/TIMEOUT
gma	[TEST] [FAILURE] [iOS] [macos] [1/2 ios_device: ios_target] (2 failed tests)   FirebaseGmaTest.TestRewardedAdLoad   FirebaseGmaTest.TestRewardedAdLoadEmptyRequest [TEST] [FLAKINESS] [Android] [2/3 os: ubuntu windows] [1/2 android_device: android_target] (1 failed tests)   FirebaseGmaTest.TestRewardedAdStress

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