testutil/compose: add dkg lock

[corverroos]

Adds support for DKG key generation to compose lock command.

category: feature
ticket: #568

[codecov]

Codecov Report

Merging #575 (963eda6) into main (6d97de5) will decrease coverage by 0.08%.
The diff coverage is 35.71%.

@@            Coverage Diff             @@
##             main     #575      +/-   ##
==========================================
- Coverage   54.96%   54.87%   -0.09%     
==========================================
  Files          95       95              
  Lines        8769     8803      +34     
==========================================
+ Hits         4820     4831      +11     
- Misses       3265     3291      +26     
+ Partials      684      681       -3     

Impacted Files	Coverage Δ
testutil/compose/define.go	54.83% <25.00%> (-4.18%)	⬇️
testutil/compose/lock.go	53.93% <36.53%> (-24.64%)	⬇️
app/app.go	62.33% <0.00%> (+2.43%)	⬆️

---

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 6d97de5...963eda6. Read the comment docs.

[corverroos]

This PR is stacked on:

• testutil/compose: add run command #571 which is stacked on
• testutil/compose: add lock command #570