buildroot: bump to 2023.02.2

This bumps Buildroot from 2023.02.1 to 2023.02.2.

From the [2023.02.2 announcement](https://lore.kernel.org/buildroot/[email protected]/T/)

```
Buildroot 2023.02.2 is a bugfix release on the current long term
release, fixing a number of important / security related issues
discovered since the 2023.02.1 release.

- Infrastucture: Add BR2_HOST_CMAKE_AT_LEAST_* for packages needing a
  newer host-cmake than what is currently enforced (3.18) - Up to the
  version provided by the cmake package (3.22).

  utils/docker-run: Now correctly handles git
  workdirs/worktrees.

- Defconfigs: QEMU s390x: Bump rootfs size to make room for kernel
  modules, Stm32f4xx: Tweak config to save RAM, Xilinx Versal vck190:
  Use correct (A72) CPU variant

- Security fixes for cups, go, graphicsmagick, intel-microcode, libcurl,
  libopenssl, libssh, moby-buildkit, ncurses, openjdk, openjdk-bin,
  postgresql, redis, xlib_libX11

- Fixes for download/compilation/runtime/license issues in atkmm, bird,
  busybox, cairomm, cairomm1_14, cmake, containerd, crudini, delve,
  docker-cli, docker-engine, earlyoom, fluent-bit, freeswitch, gcc, gdb,
  glibmm2_66, gnupg2, gptfdisk, libass, libdeflate, libgeos, libgtk3,
  libjxl, libnftl, libressl, llvm, lua, mesa3d, micropython, minidlna,
  mpd, mupdf, nftables, perl-http-message, php, python-can,
  python-django, python-docker, python-ipython, python-matplotlib,
  python-mupdf, python-requests, python3, qemu, rpm, runc, sdl2_mixer,
  tzdata, uclibc, vdr, webkitgtk, wilc-firmware, xapp_xcalc,
  xapp_xdpyinfo, xapp_xinput, xapp_xwininfo, xdata_xbitmaps,
  xdata_xcursor-themes, xdriver_xf86-input-mouse,
  xdriver_xf86-video-ark, xdriver_xf86-video-geode,
  xdriver_xf86-video-neomagic, xfont_encodings, xlib_libXaw, xlib_libXi,
  xlib_libXfixes, xlib_libXft, xlib_libXpm, zfs, znc

- New packages: perl-clone, python-asttokens, python-executing,
  python-pure-eval, python-stack-data
```

create-build.sh

@@ -13,7 +13,7 @@
 
 set -e
 
-NERVES_BR_VERSION=2023.02.1
+NERVES_BR_VERSION=2023.02.2
 
 DEFCONFIG=$1
 BUILD_DIR=$2