MINOR: [CI] Bump actions/setup-python from 5.5.0 to 6.0.0#67

dependabot[bot] wants to merge 1 commit into5588-Better-support-for-building-UnionArraysQuietCraftsmanship/arrow:5588-Better-support-for-building-UnionArraysfrom

dependabot/github_actions/actions/setup-python-6.0.0QuietCraftsmanship/arrow:dependabot/github_actions/actions/setup-python-6.0.0Copy head branch name to clipboard