Update run-readme-pr-linuxaarch64.yml to use correct runner #2472

Job	Run time
test-advanced-any / linux-job	17m 56s
test-advanced-cpu / linux-job	17m 38s
test-evaluation-cpu / linux-job	17m 38s
test-evaluation-any / linux-job	17m 33s
test-gguf-any / linux-job	17m 37s
test-gguf-cpu / linux-job	17m 29s
test-multimodal-any / linux-job	4m 23s
test-multimodal-cpu / linux-job	4m 18s
test-native-any / linux-job	7m 26s
test-native-cpu / linux-job	7m 25s
test-quantization-any / linux-job	17m 44s
test-quantization-cpu / linux-job	17m 50s
test-readme-any / linux-job	11m 40s
test-readme-cpu / linux-job	11m 30s
	3h 8m 7s

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