Simplify environments

[rowanseymour]

No description provided.

[codecov]

Codecov Report

Merging #1174 (0e94df8) into main (2fe2f47) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1174      +/-   ##
==========================================
+ Coverage   87.77%   87.80%   +0.02%     
==========================================
  Files         259      258       -1     
  Lines       10946    10943       -3     
==========================================
  Hits         9608     9608              
+ Misses        920      917       -3     
  Partials      418      418              

Files Changed	Coverage Δ
flows/triggers/base.go	82.47% <ø> (-0.36%)	⬇️
flows/actions/base.go	91.08% <100.00%> (ø)
flows/actions/call_classifier.go	89.13% <100.00%> (ø)
flows/actions/send_msg.go	90.69% <100.00%> (ø)
flows/engine/engine.go	95.00% <100.00%> (+0.12%)	⬆️
flows/engine/session.go	74.29% <100.00%> (+0.09%)	⬆️
flows/environment.go	87.17% <100.00%> (+10.98%)	⬆️
flows/routers/switch.go	62.13% <100.00%> (ø)
flows/routers/waits/dial.go	78.37% <100.00%> (ø)
flows/runs/run.go	84.92% <100.00%> (-0.23%)	⬇️

... and 1 file with indirect coverage changes

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