Simon Redman authored Jun 26, 2022 and Nate Graham committed Jun 26, 2022

Noticed as I was trying to build this that cmake complained about these two packages.

## Before:

When trying to run cmake with only the packages suggested in the README, you'll see:

```
CMake Error at /usr/share/ECM/find-modules/FindLibGit2.cmake:67 (file):                             
  file STRINGS file "/usr/include/git2/version.h" cannot be read.
Call Stack (most recent call first):
  CMakeLists.txt:13 (find_package)
```

and (along the lines of)

```
CMake Error at /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
  Could NOT find KF5 (missing: Plasma) (found version "5.94.0")
Call Stack (most recent call first):
  /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
  /usr/share/ECM/find-modules/FindKF5.cmake:93 (find_package_handle_standard_args)
  CMakeLists.txt:25 (find_package)
```

## After:

cmake runs cleanly, Kup builds correctly.