chore(deps): update dependency com.google.cloud:libraries-bom to v26.72.0#4234

renovate-bot wants to merge 1 commit intogoogleapis:maingoogleapis/java-spanner:mainfrom

renovate-bot:renovate/com.google.cloud-libraries-bom-26.xrenovate-bot/java-spanner:renovate/com.google.cloud-libraries-bom-26.xCopy head branch name to clipboard