Set concurrency group for all jobs that target a deployment environment

[hknutsen]

For all jobs that target a deployment environment (i.e. a value is provided for environment), add the job to a common concurrency group (e.g. deployment @ <environment>) to ensure only a single deployment is created for a given environment at all times.

Tasks

• Set concurrency group for azure-function.yml
• Set concurrency group for azure-webapp.yml
• Set concurrency group for github-pages.yml
• Set concurrency group for terraform.yml

[hknutsen]

terraform.yml should keep its current concurrency group. Works really well, as it allows deploying multiple configs to the same environment at once 🙂