Issue #125: Add requires_ansible version constraints to runtime.yml.

[geerlingguy]

Closes #125.

Leaving in draft state until we can choose whether to set the minimum requirement to 2.9.10 vs 2.9 (see related issue).

[codecov]

Codecov Report

Merging #126 into master will increase coverage by 0.31%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #126      +/-   ##
==========================================
+ Coverage   42.88%   43.19%   +0.31%     
==========================================
  Files           3        3              
  Lines         541      544       +3     
  Branches      110      110              
==========================================
+ Hits          232      235       +3     
  Misses        266      266              
  Partials       43       43              

Impacted Files	Coverage Δ
...ommunity/kubernetes/plugins/module_utils/common.py	38.83% <0.00%> (+0.90%)	⬆️

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[geerlingguy]

@codecov

[geerlingguy]

From some discussions on IRC it seems that we're okay to go with 2.9 as the minimum version, since the content in this collection has been tested back that far.