Correct k8s env & specify namespace for k8s jobs

Integrate k8s to allow job creation specifying namespace explicitly to avoid per-namespace integration.
1 job for nodeploy/prettier-config-test in 14 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #505878
Test

00:00:14

 
Name Stage Failure
failed
Test Test
Removing src/ensembl/node_modules/

Skipping Git submodules setup
Executing "step_script" stage of the job script
Using docker image sha256:abea835c0b3b0ef244d92a1076602ed0891a35b1b77fd73cd200a32860f822d5 for node:14.16.0 with digest node@sha256:f6b9ff4caca9d4f0a331a882e560df242eb332b7bbbed2f426784de208fcd7bd ...
$ cd src/ensembl
$ npm ci
Cleaning up file based variables
ERROR: Job failed: exit code 1