add github action support

5 jobs for master in 4 minutes and 10 seconds (queued for 6 seconds)
Status Job ID Name Coverage
  Build
failed #84264
build

00:04:10

 
  Image
skipped #84265
make-image
 
  Deploy
skipped #84266
lightweight
deploy-master
skipped #84268
lightweight allowed to fail manual
deploy-prod
skipped #84267
lightweight allowed to fail manual
stop-deploy-master
 
Name Stage Failure
failed
build Build
[WARNING] Running as root is not recommended
File "src/dune", line 4, characters 18-24:
4 | (libraries dream ezcurl ocb omd))
^^^^^^
Error: Library "ezcurl" not found.
Hint: try:
dune external-lib-deps --missing --profile release @all
Cleaning up file based variables
ERROR: Job failed: exit code 1