[Snyk] Security upgrade centos from 7 to centos8#2

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kpango wants to merge 1 commit intomasterfrom snyk-fix-dfa5afabdb8c05f3fd22fae1a85fba03

+1-1

Commits on Oct 26, 2022

fix: install/Dockerfile.vespa to reduce vulnerabilities
snyk-bot
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