Use Docker buildx for multi-platform support

[rnsc]

This PR should solve #1061.
Hopefully this can be built within your current pipeline (referring to my first commit).

[rnsc]

@cesar-rodriguez hopefully this tiny commit should be enough to build a multi platform image

[codecov]

Codecov Report

Merging #1062 (dab35ab) into master (471df8b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1062   +/-   ##
=======================================
  Coverage   77.73%   77.73%           
=======================================
  Files         272      272           
  Lines        7683     7683           
=======================================
  Hits         5972     5972           
  Misses       1357     1357           
  Partials      354      354           

[cesar-rodriguez]

@rnsc I modified the workflow so we can test that this works before merging, but there seems to be an issue with the driver: https://github.com/accurics/terrascan/pull/1062/checks?check_run_id=3952337701

[rnsc]

Hey @cesar-rodriguez thank you for this!
That's weird, I'm using buildx (albeit "natively" in workflows) myself without issues on GitHub hosted instances:
https://github.com/rnsc/dockerfiles/blob/githubactions-docker-build/.github/workflows/debian.yml

I'll have a deeper look to see if I'm missing anything.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

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[rnsc]

@cesar-rodriguez I've also noticed that there's an "amd64" value set in the Dockerfile, I'll need to investigate that too, not as trivial of a change as I thought!

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication