Increase cmake and deps versions
cmake to 3.16
Qt to 5.15 ( which is also min req for KF 5.82 )
Remove redundant KF version check ( we are already 5.82 )
cmake to 3.16
Qt to 5.15 ( which is also min req for KF 5.82 )
Remove redundant KF version check ( we are already 5.82 )