Add Fidget-Spinner to stackrefs CODEOWNERS #118843

Job	Run time
Check for source changes	13s
Check if generated files are up to date	4m 50s
Docs	0s
Address sanitizer	7m 26s
Ubuntu SSL tests with OpenSSL (1.1.1w)	1m 54s
Hypothesis tests on Ubuntu	5m 14s
Ubuntu SSL tests with OpenSSL (3.0.13)	2m 2s
Ubuntu SSL tests with OpenSSL (3.1.5)	2m 6s
Ubuntu SSL tests with OpenSSL (3.2.1)	1m 55s
CIFuzz	0s
Windows / build and test (x64)	15m 22s
Windows / build (arm64)	2m 13s
Windows / build and test (x86)	15m 49s
macOS / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	3m 57s
macOS / build and test (macos-13)	9m 32s
Windows (free-threading) / build and test (x64)	22m 1s
Windows (free-threading) / build (arm64)	3m 5s
Windows (free-threading) / build and test (x86)	23m 19s
macOS (free-threading) / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	6m 53s
Thread sanitizer / Thread sanitizer	4m 33s
Thread sanitizer (free-threading) / Thread sanitizer	6m 56s
Ubuntu / build and test	7m 42s
Ubuntu (free-threading) / build and test	8m 50s
WASI / build and test	6m 47s
All required checks pass	4s
	2h 42m 43s

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