Update sabre/dav requirement from 3.2.3 to 4.1.5 in /build/integration#2

dependabot[bot] wants to merge 1 commit intostable207118path/server:stable20from

dependabot/composer/build/integration/stable20/sabre/dav-4.1.57118path/server:dependabot/composer/build/integration/stable20/sabre/dav-4.1.5Copy head branch name to clipboard