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Remove `macos-14-xlarge` from `codeql` workflow #9751

Job	Run time
Ruby analysis (ubuntu-26.04, linked)	41s
Ruby analysis (macos-26, nightly-latest)	1m 19s
Ruby analysis (macos-26, default)	1m 19s
Ruby analysis (ubuntu-26.04, nightly-latest)	42s
Ruby analysis (ubuntu-26.04, default)	44s
Ruby analysis (macos-26, linked)	56s
	5m 41s