Updated OpenCV from 0.93 to 0.94.2 and Fixed OpenCV Build Failure

[dkrishnakumar987]

So when I tried to install this on Arch, the build broke with this error:
"error[E0061]: this function takes 5 arguments but 4 arguments were supplied
--> src/common/utils.rs:66:8
|
66 | if imgproc::cvt_color(&mat, &mut rgb_mat, imgproc::COLOR_BGR2RGB, 0).is_ok() {
| ^^^^^^^^^^^^^^^^^^----------------------------------------------- argument #5 of type AlgorithmHint is missing
|
|
6212 | pub fn cvt_color(src: &impl ToInputArray, dst: &mut impl ToOutputArray, code: i32, dst_cn: i32, hint: core::AlgorithmHint) -> Result<()> {
| ^^^^^^^^^
help: provide the argument
|
66 | if imgproc::cvt_color(&mat, &mut rgb_mat, imgproc::COLOR_BGR2RGB, 0, /* AlgorithmHint */).is_ok() {"

This was occurring even with OpenCV 0.93.
So I changed the required parameters and updated OpenCV to 0.94.2

For now there doesn't seem to be any issues on my system. Please let me know if there's any issues and if this may break things on other Distros.