Update git submodules

* Update kubernetes/robot from branch 'master'
  to 4b76d896522b113eff620a732a6ce7b363529f7f
  - Merge "[ROBOT] Version bump for Guilin"
  - [ROBOT] Version bump for Guilin
    
    Guilin chart uses 7.0.0 version.
    
    Issue-ID: OOM-2638
    Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
    Change-Id: Icceec640d07075d67038ee8b41fd50639f7c2c21
    
1 file changed