Add Alpine package build target and metadata generation

- Create CMake target for generating Alpine package (apk)
- Add APKBUILD metadata generation in GitHub workflow
- Configure package details including version, description, and dependencies
- Streamline Alpine package creation process

CMakeLists.txt

@@ -136,3 +136,12 @@ target_link_libraries(silkscreen utils)
 target_link_libraries(cpu_check avx compressor crc32c crypto fvt_controller hasher malign_buffer pattern_generator silkscreen utils)
 
 install (TARGETS cpu_check DESTINATION bin)
+
+# Alpine package target
+add_custom_target(apk
+    COMMAND mkdir -p "${CMAKE_BINARY_DIR}/pkg/usr/bin"
+    COMMAND cp "${CMAKE_BINARY_DIR}/cpu_check" "${CMAKE_BINARY_DIR}/pkg/usr/bin/"
+    COMMAND cd "${CMAKE_BINARY_DIR}" && tar -czf "cpu-check-${PROJECT_VERSION}-r$ENV{PKG_RELEASE}.apk" -C pkg .
+    DEPENDS cpu_check
+    COMMENT "Creating Alpine package"
+)