Bump org.thymeleaf:thymeleaf from 3.1.1.RELEASE to 3.1.5.RELEASE in /booking-mvc#68

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dependabot/maven/booking-mvc/org.thymeleaf-thymeleaf-3.1.5.RELEASEspring-projects/spring-webflow-samples:dependabot/maven/booking-mvc/org.thymeleaf-thymeleaf-3.1.5.RELEASECopy head branch name to clipboard