Unattended upgrades: Whitelist package sources for MariaDB and New Relic

[amotl]

Spotted in the wild.

/etc/apt/sources.list.d/mariadb.list

# MariaDB Server
# To use a different major version of the server, or to pin to a specific minor version, change URI below.
deb [arch=amd64,arm64] https://dlm.mariadb.com/repo/mariadb-server/10.7/repo/debian bullseye main

# MariaDB MaxScale
# To use the latest stable release of MaxScale, use "latest" as the version
# To use the latest beta (or stable if no current beta) release of MaxScale, use "beta" as the version
deb [arch=amd64,arm64] https://dlm.mariadb.com/repo/maxscale/latest/apt bullseye main

# MariaDB Tools
deb [arch=amd64] http://downloads.mariadb.com/Tools/debian bullseye main

/etc/apt/sources.list.d/newrelic.list

deb http://apt.newrelic.com/debian/ newrelic non-free