lightgbm: migrate to Conan v2, add v4.0.0

[valgur]

TODO:

• v1: Could NOT find OpenMP_C (missing: OpenMP_C_FLAGS OpenMP_C_LIB_NAMES)

[valgur]

@uilianries Can you help with this one as well, please?
ERROR: Missing prebuilt package for 'fast_double_parser/0.7.0'

[uilianries]

@valgur I just started an internal build to generate fast_double_parser/0.7.0

[uilianries]

ERROR: Missing binary: fast_double_parser/0.7.0:da39a3ee5e6b4b0d3255bfef95601890afd80709

It's in the build queue, there are more builds running right now.

[uilianries]

Please, revert to patches as before, so we can track that change. Plus, I opened a PR to the upstream: microsoft/LightGBM#6178

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 10 (934ec52bcd58b9833bae0917bcc797f26579f54d):

• lightgbm/4.1.0:
  All packages built successfully! (All logs)

• lightgbm/3.3.5:
  All packages built successfully! (All logs)

• lightgbm/3.3.2:
  All packages built successfully! (All logs)

---

Conan v2 pipeline ✔️

Note: Conan v2 builds are now mandatory. Please read our discussion about it.

All green in build 10 (934ec52bcd58b9833bae0917bcc797f26579f54d):

• lightgbm/4.1.0:
  All packages built successfully! (All logs)

• lightgbm/3.3.5:
  All packages built successfully! (All logs)

• lightgbm/3.3.2:
  All packages built successfully! (All logs)