Reland "[CMake] Bumps minimum version to 3.20.0."

This reverts commit 92523a35a827539db8557bbc3ecab7f9ea3f6ade.

Test whether all CI runners are updated.

GitOrigin-RevId: a72165e5df59032cdd54dcb18155f2630d73abd1
2 files changed
tree: f05524e3158f72ae52ab0dafbe2e8ea9f99476ad
  1. cmake/
  2. docs/
  3. include/
  4. src/
  5. test/
  6. .clang-format
  7. CMakeLists.txt
  8. LICENSE.TXT