chore: add context to build functions

[plyr4]

continuing the efforts started in #898

this is prep to add support for OpenTelemetry tracing.

the reason being, otel can (for the most part) work out of the box if you pass around contexts properly.

[codecov]

Codecov Report

Merging #922 (9064208) into main (516d4fe) will decrease coverage by 0.04%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##             main     #922      +/-   ##
==========================================
- Coverage   71.42%   71.38%   -0.04%     
==========================================
  Files         304      304              
  Lines       12482    12500      +18     
==========================================
+ Hits         8915     8923       +8     
- Misses       3132     3142      +10     
  Partials      435      435              

Files Changed	Coverage Δ
api/build/cancel.go	0.00% <0.00%> (ø)
api/build/clean.go	0.00% <0.00%> (ø)
api/build/create.go	0.00% <0.00%> (ø)
api/build/delete.go	0.00% <0.00%> (ø)
api/build/get_id.go	0.00% <0.00%> (ø)
api/build/list_org.go	0.00% <0.00%> (ø)
api/build/list_repo.go	0.00% <0.00%> (ø)
api/build/plan.go	0.00% <0.00%> (ø)
api/build/publish.go	0.00% <0.00%> (ø)
api/build/restart.go	0.00% <0.00%> (ø)
... and 24 more

[plyr4]

moving into draft until #898 is merged.
id rather take care of the conflicts than force them on sussman 😅