feat(Variables): Recognize : in address to support output source

[pgrzesik]

Reported internally. It addresses missing support for all cases of output variable source. Ref: https://www.serverless.com/framework/docs/guides/output-variables

[codecov]

Codecov Report

Merging #10208 (8a7b0c3) into master (ecf2918) will decrease coverage by 0.00%.
The diff coverage is n/a.

❗ Current head 8a7b0c3 differs from pull request most recent head 6758237. Consider uploading reports for the commit 6758237 to get more accurate results

@@            Coverage Diff             @@
##           master   #10208      +/-   ##
==========================================
- Coverage   85.35%   85.34%   -0.01%     
==========================================
  Files         339      339              
  Lines       13831    13829       -2     
==========================================
- Hits        11805    11803       -2     
  Misses       2026     2026              

Impacted Files	Coverage Δ
lib/configuration/variables/parse.js	98.95% <ø> (-0.01%)	⬇️

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[medikoo]

Looks great 👍

Still I think I would mark it a new feature of new resolver not a bug fix.

Current behavior was intentional, and new findings forced us to change the behavior

[medikoo]

👍