Updated appveyor enabled values detection

[andrew-aladev]

Hello, please update with the recent changes of appveyor environment.

APPVEYOR - True (true on Ubuntu image) if build runs in AppVeyor environment
CI - True (true on Ubuntu image) if build runs in AppVeyor environment

[codecov[bot]]

Codecov Report

Merging #114 (0dbf560) into master (f677699) will increase coverage by 0.02%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #114      +/-   ##
==========================================
+ Coverage   90.52%   90.55%   +0.02%     
==========================================
  Files           1        1              
  Lines         359      360       +1     
==========================================
+ Hits          325      326       +1     
  Misses         34       34              

Impacted Files	Coverage Δ
lib/codecov.rb	90.55% <100.00%> (+0.02%)	:arrow_up:

---

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 f677699...0dbf560. Read the comment docs.

[andrew-aladev]

Workaround:

environment:
  matrix:
    - job_name: Ubuntu
      appveyor_build_worker_image: Ubuntu2004
      APPVEYOR: True
      CI: True

[thomasrockhu-codecov]

Closing due to deprecation