GH Actions: run NetBSD via cross-platform-actions/action

This one has the `pkgin` command preinstalled (see https://github.com/cross-platform-actions/netbsd-builder/blob/c8e88e1f1a6f892f564f61f07695a4d588bb2e46/readme.md?plain=1#L23), which greatly simplifies package installation.

Author: generalmimon

.github/workflows/build.yml

@@ -167,20 +167,26 @@ jobs:
  steps:
  - uses: actions/checkout@v5
  - name: Run in NetBSD
- uses: vmactions/netbsd-vm@v1
+ uses: cross-platform-actions/action@v0.29.0
  with:
- release: "10.1"
- usesh: true
- prepare: |
- /usr/sbin/pkg_add cmake googletest
-
+ operating_system: netbsd
+ version: '10.1'
  run: |
+ set -x
  echo '#### System information'
+ uname -a
+ echo "$SHELL"
+ pwd
+ ls -la
  whoami
- env
+ env | sort
  c++ --version
  gcc --version
 
+ sudo pkgin update
+ sudo pkgin -y install cmake
+ sudo pkgin -y install googletest
+
  echo '#### Building'
  .build/build -DCMAKE_CXX_STANDARD=11 -DCMAKE_CXX_STANDARD_REQUIRED=ON -DCMAKE_CXX_EXTENSIONS=OFF