fix: response on canceled workflow action

[molar-volume]

fixes #6859

[codecov]

Codecov Report

Merging #6967 (a8a3f86) into master (2fd4b8a) will increase coverage by 0.00%.
The diff coverage is 36.84%.

❗ Current head a8a3f86 differs from pull request most recent head 5cb883d. Consider uploading reports for the commit 5cb883d to get more accurate results

@@           Coverage Diff           @@
##           master    #6967   +/-   ##
=======================================
  Coverage   48.53%   48.54%           
=======================================
  Files         265      265           
  Lines       19259    19267    +8     
=======================================
+ Hits         9348     9353    +5     
  Misses       8860     8860           
- Partials     1051     1054    +3     

Impacted Files	Coverage Δ
cmd/argoexec/commands/root.go	2.70% <0.00%> (ø)
config/config.go	31.57% <ø> (ø)
util/tls/tls.go	64.28% <0.00%> (ø)
workflow/controller/dag.go	75.37% <0.00%> (-1.01%)	⬇️
workflow/executor/executor.go	24.10% <0.00%> (ø)
workflow/metrics/server.go	15.78% <0.00%> (ø)
cmd/argo/commands/server.go	31.42% <100.00%> (+1.50%)	⬆️
util/expand/expand.go	100.00% <100.00%> (ø)
workflow/controller/operator.go	71.22% <100.00%> (+0.01%)	⬆️
cmd/argo/commands/get.go	59.18% <0.00%> (-0.59%)	⬇️
... and 2 more

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