chore/feat: dlkcat docker multiarch

[mihai-sysbio]

Main improvements in this PR:

This PR adds an ARM-compatible Docker image of dlkcat thus resolving #393.

Instructions on merging this PR:

• This PR has develop as target branch, and will be resolved with a squash-merge.
• This PR has main as target branch, and will be resolved with a merge commit.

[github-actions]

This PR has been automatically tested with GH Actions. Here is the output of the tests:

 
GECKO installed, unknown version (cannot find version.txt).
Running geckoCoreFunctionTests
Done geckoCoreFunctionTests
__________

Note: In the case of multiple test runs, this post will be edited.

[mihai-sysbio]

Once all the images are tested, it would be good to change the call dlkcat-gecko to 0.1-multiarch rather than just 0.1, but the old 0.1 image should not be deleted.