CA/KF: Compile warning fixes

This MR fixes warnings of compiler from several KF and CA headers

requested review from @se.gorbunov

assigned to @f.uhlig

Dear @se.gorbunov, @v.akishina,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

@se.gorbunov,

if you are fine with the changes I would merge.

approved this merge request

added 48 commits

• 2918be9f...fe8fb089 - 47 commits from branch computing:master
• 5b17ed39 - CA/KF: Warning fixes

Compare with previous version

enabled an automatic merge when the pipeline for 5b17ed39 succeeds

@f.uhlig, it is fine with me. I have set the automerge.

merged