build: fix cross-span and setuptools CVEs #2067
                
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Fixes CVE-2024-21538 and CVE-2024-6345 .
b/430729479
Source-Link: googleapis/synthtool@65d4020
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:a52bd494fc1fe28479d7982db3d0f8bd49d862b4184c4574ca0931e99ac1ffee