Log Message:
libmaxminddb: update to 1.7.0.

## 1.7.0 - 2022-09-28

* `FD_CLOEXEC` is now set on platforms that do not support `O_CLOEXEC`.
  Reported by rittneje. GitHub #273.
* When building with Visual Studio, you may now build a static runtime with
  CMake by setting `MSVC_STATIC_RUNTIME` to `ON`. Pull request by Rafael
  Santiago. GitHub #269.
* The CMake build now works on iOS. Pull request by SpaceIm. GitHub #271.
* The CMake build now uses the correct library directory on Linux systems
  using alternate directory structures. Pull request by Satadru Pramanik.
  GitHub #284.
* File size check now correctly compares the size to `SSIZE_MAX`. Reported
  by marakew. GitHub #301.