Github Actions for Test and Deploy / Update c7n and c7n_mailer versions

[jleopold28]

Description

• Adding github actions workflow to replace TravisCI
• Bump c7n to release 0.9.14
• Bump c7n-mailer to release 0.6.13
• Updated dependencies for c7n and c7n-mailer

Testing Done

Tests in Github Actions

Important Notes

TravisCI has been replaced with Github Actions for Test and Release

Contributor License Agreement

Required for external contributors.

By submitting this work for inclusion in manheim-c7n-tools, I agree to the following terms:

• The contribution included in this request (and any subsequent revisions or versions of it)
  is being made under the same license as the manheim-c7n-tools project (Apache v2).
• My contribution may perpetually be included in and distributed with manheim-c7n-tools; submitting
  this pull request grants a perpetual, global, unlimited license for it to be used and distributed
  under the terms of manheim-c7n-tools's license.
• I have the legal power and rights to agree to these terms.

[codecov-commenter]

Codecov Report

Merging #65 (35ac1fd) into master (77a904e) will increase coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head 35ac1fd differs from pull request most recent head a01e6e0. Consider uploading reports for the commit a01e6e0 to get more accurate results

@@            Coverage Diff             @@
##           master      #65      +/-   ##
==========================================
+ Coverage   61.47%   61.49%   +0.02%     
==========================================
  Files           9        9              
  Lines        1469     1470       +1     
  Branches      288      306      +18     
==========================================
+ Hits          903      904       +1     
  Misses        565      565              
  Partials        1        1              

Impacted Files	Coverage Δ
manheim_c7n_tools/notifyonly.py	100.00% <100.00%> (ø)
manheim_c7n_tools/version.py	100.00% <100.00%> (ø)

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[jantman]

Looks good, thanks!