use clang-tidy to add auto as data type for variable declarations

2 jobs for !177 with tidyCode in 16 minutes and 49 seconds (queued for 3 seconds)
latest detached
Status Job ID Name Coverage
  Build
passed #72824
linux kf5-qt5 qt5.12

00:16:01

86.0%
passed #72823
reuse

00:00:48