[Axmol 3.x] Label::updateColor() opacity

[solan-solan]

• axmol version: 3.x branch
• devices test on:
• developing environments
  • NDK version: r23c
  • Xcode version: 14.2+
  • Visual Studio:
    • VS version: 2022 (17.9+)
    • MSVC version: 19.39+
    • Windows SDK version: 10.0.22621.0+
  • cmake version:
    Steps to Reproduce:

Fix please this inconsistency like it done for Sprite::updateColor()

[rh101]

You should specify that it's the Axmol 3.x branch you're referring to, because that code is not in the dev branch.

[solan-solan]

Done (hope this supposed)