Fixes #77: Update checkout action to v2 for CI stability.

[geerlingguy]

Closes #77.

[codecov]

Codecov Report

Merging #78 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #78   +/-   ##
=======================================
  Coverage   43.33%   43.33%           
=======================================
  Files           3        3           
  Lines         540      540           
  Branches      109      109           
=======================================
  Hits          234      234           
  Misses        263      263           
  Partials       43       43           

Impacted Files	Coverage Δ
plugins/modules/k8s.py
plugins/module_utils/raw.py
plugins/module_utils/common.py
...s/community/kubernetes/plugins/module_utils/raw.py	39.16% <0.00%> (ø)
...ctions/community/kubernetes/plugins/modules/k8s.py	90.90% <0.00%> (ø)
...ommunity/kubernetes/plugins/module_utils/common.py	50.68% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 493b6e3...1ea2781. Read the comment docs.