CPack Update

[marip8]

This PR fixes a few issues with the CPack configurations:

Debian dependencies

Currently the dependencies of a package are passed into the tesseract_cpack macro as a list of strings. cmake concatenates these entries into a semi-colon separated string. This is problematic for debians because they expect a comma-separated list of dependencies. I think NuGet packages have the same requirement, but I was not able to confirm. The solution was to replace the semi-colons in ${ARG_<OS>_DEPENDS} with commas

Debian architecture name

The debians I initially created would not install because the specified architecture x86_64 did not match the system architecture amd64. The specified architecture currently comes from the CMAKE_SYSTEM_PROCESSOR variable, which returns x86_64 in my case. Per this document, x86_64 is not actually a valid debian architecture; the corresponding architecture should actually be amd64. The solution was to change references from x86_64 to amd64 for Linux builds. I'm not sure if Windows NuGet packages are affected the same way, so I didn't change anything there

[codecov]

Codecov Report

Merging #693 (498836d) into master (ab607da) will not change coverage.
The diff coverage is n/a.

❗ Current head 498836d differs from pull request most recent head 7f3dad6. Consider uploading reports for the commit 7f3dad6 to get more accurate results

@@           Coverage Diff           @@
##           master     #693   +/-   ##
=======================================
  Coverage   92.16%   92.16%           
=======================================
  Files         172      172           
  Lines       11017    11017           
=======================================
  Hits        10154    10154           
  Misses        863      863           

Impacted Files	Coverage Δ
tesseract_environment/src/environment.cpp	91.74% <0.00%> (ø)

[Levi-Armstrong]

@marip8 Is it okay to merge this if CI passes?

[marip8]

Yes, I've run it locally and been able to produce debians