community/pdns-recursor: update to 4.5.2
- bump to 4.5.2
- updated maintainer to be me (as discussed in https://lists.alpinelinux.org/~alpine/devel/%3C891a2d6205f583e0291eec4d7dee892541c9adb9.camel%40powerdns.com%3E
- removed one patch that is now part of the upstream release
- removed protobuf dep, it's no longer needed