chore: dependency updates 2020-10-12

[richardcase]

What this PR does / why we need it:

Combining updates to containerd / terratest versions as raised by dependabot.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

Checklist:

• squashed commits into logical changes

[codecov-commenter]

Codecov Report

Merging #136 (051428e) into main (12b503c) will increase coverage by 0.30%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##             main     #136      +/-   ##
==========================================
+ Coverage   40.09%   40.40%   +0.30%     
==========================================
  Files          32       32              
  Lines        1444     1448       +4     
==========================================
+ Hits          579      585       +6     
+ Misses        789      788       -1     
+ Partials       76       75       -1     

Impacted Files	Coverage Δ
core/application/commands.go	64.93% <83.33%> (+1.92%)	⬆️
pkg/queue/queue.go	100.00% <0.00%> (+6.06%)	⬆️

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