List of best mirrors for IP address 3.137.177.116, 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-dbgsym_5.15.8+dfsg-3+rpi1_arm64.deb