Recipe - Replace runners

[yeikel]

jobs:
  build:
    runs-on: ubuntu-latest
  other:
    runs-on: ubuntu-latest

Input to the recipe:

• Job : jobs.build
• New runner : MyNewRunner

jobs:
  build:
    runs-on: MyNewRunner
  other:
    runs-on: ubuntu-latest

Ideally, and to avoid creating another recipe, it should support adding multiple runners:

• Job : jobs.build
• New runner : MyNewRunner,MyNewRunner2

jobs:
  build:
    runs-on:  [MyNewRunner1,MyNewRunner2]