Replace yaml.load with yaml.safe_load.

As documented https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation
yaml.load uses unsafe loader.
4 jobs for yaml_fix in 3 minutes and 47 seconds (queued for 2 seconds)
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passed #91110
test build

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  Test
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test latest requirements

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passed #91113
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passed #91111
test stable requirements

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