Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 6e4256fa4db190543ffd84a87b643c27d8591d54
  - Automation adds release-notes.rst
    
    Add _release_notes hook to allow automation.
    Fix non valid release notes characters in content.
    
    Issue-ID: CIMAN-376
    Change-Id: If2f0b5ae09d97a282d9acfd3c32971148d674a79
    Signed-off-by: lf-jobbuilder <releng+lf-jobbuilder@linuxfoundation.org>
    
1 file changed