feat: Add labels to runners

Fixes #2.

Signed-off-by: Julien Riou <julien@riou.xyz>

files/runners/config.yml

@@ -1,47 +0,0 @@
-# Example configuration file, it's safe to copy this as the default config file without any modification.
-
-# You don't have to copy this file to your instance,
-# just run `forgejo-runner generate-config > config.yaml` to generate a config file.
-
-log:
-  level: info
-  job_level: info
-
-runner:
-  file: .runner
-  capacity: 1
-  envs:
-    A_TEST_ENV_NAME_1: a_test_env_value_1
-    A_TEST_ENV_NAME_2: a_test_env_value_2
-  env_file: .env
-  timeout: 3h
-  shutdown_timeout: 3h
-  insecure: false
-  fetch_timeout: 5s
-  fetch_interval: 2s
-  report_interval: 1s
-  labels: []
-
-cache:
-  enabled: true
-  port: 0
-  dir: ""
-  external_server: ""
-  secret: ""
-  host: ""
-  proxy_port: 0
-  actions_cache_url_override: ""
-
-container:
-  network: ""
-  enable_ipv6: false
-  privileged: false
-  options:
-  workdir_parent:
-  valid_volumes: []
-  docker_host: "-"
-  force_pull: false
-  force_rebuild: false
-
-host:
-  workdir_parent: