Bump miniz to silence CMake <3.5 deprecation warnings (deprecated since CMake 3.27)

Request by @g2px1 to up miniz version in `CMakeLists.txt` from
```
        VERSION       3.0.2
```
to
```
        VERSION       3.1.1
```
and from
```
        GIT_TAG         3.0.2
```
to
```
        GIT_TAG         3.1.1
```