feat: add node16 support

[catthehacker]

Changes:

• Bump all images to NodeJS 16.x
• Add support for node16 in actions

To do:

• Add support to find the right version of node in the image for each node key
  • node16 finds node in /opt/hostedtoolcache/node/16.*.*/, etc.
    this will be addressed in new PR

Closes #910

[codecov]

Codecov Report

Merging #922 (9428e91) into master (0f04942) will increase coverage by 7.76%.
The diff coverage is 64.22%.

@@            Coverage Diff             @@
##           master     #922      +/-   ##
==========================================
+ Coverage   49.27%   57.03%   +7.76%     
==========================================
  Files          23       28       +5     
  Lines        2401     4224    +1823     
==========================================
+ Hits         1183     2409    +1226     
- Misses       1090     1607     +517     
- Partials      128      208      +80     

Impacted Files	Coverage Δ
pkg/common/executor.go	46.90% <0.00%> (+2.03%)	⬆️
pkg/common/job_error.go	0.00% <0.00%> (ø)
pkg/common/outbound_ip.go	0.00% <0.00%> (ø)
pkg/common/testflag.go	0.00% <0.00%> (ø)
pkg/container/docker_volume.go	0.00% <0.00%> (ø)
pkg/model/action.go	0.00% <0.00%> (ø)
pkg/container/docker_run.go	5.54% <14.15%> (+3.61%)	⬆️
pkg/common/git.go	49.82% <31.81%> (-9.97%)	⬇️
pkg/runner/logger.go	65.43% <37.50%> (+1.28%)	⬆️
pkg/container/docker_auth.go	45.00% <45.00%> (ø)
... and 35 more

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[Poltergeist]

We @ZauberNerd, @KnisterPeter and me looked at this together and we do agree with those changes. And we have no comments for changes.

[catthehacker]

welp, github linter broke