close#42
1. Inject runner version when `make build`
After building, executing command line: `./act_runner -v` or `./act_runner --version`, the version of runner is printed.

2. In `Actions` UI:

3. Set request header in http client interceptor.
Co-authored-by: sillyguodong <gedong_1994@163.com>
Reviewed-on: https://gitea.com/gitea/act_runner/pulls/43
Reviewed-by: delvh <dev.lh@web.de>
Reviewed-by: Jason Song <i@wolfogre.com>
Co-authored-by: sillyguodong <sillyguodong@noreply.gitea.io>
Co-committed-by: sillyguodong <sillyguodong@noreply.gitea.io>
When deploy a Gitea server with a self-signed HTTPS certification. Runner will be failed when connect to Gitea server. This PR will fix that to allow ignore the HTTPS certification verification.
Reviewed-on: https://gitea.com/gitea/act_runner/pulls/18
Reviewed-by: Jason Song <i@wolfogre.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-committed-by: Lunny Xiao <xiaolunwen@gmail.com>