List of best mirrors for IP address 18.225.156.91, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/multiarch/pool/main/q/qtdeclarative-opensource-src/qtdeclarative5-dev-tools_5.15.2+dfsg-6+rpi1_arm64.deb