Find{Java,JNI}: refactor Windows registry query, lint (!8818) · Merge requests · CMake / CMake · GitLab

scivision requested to merge scivision/cmake:findjava into master Sep 20, 2023

Fix indenting to 2-spaces
use modern foreach() syntax
for Windows, use cmake_host_system_information instead of execute_process to query registry. These were the last two places in CMake modules using execute_process to query the registry.