Allow request an insecure gitea server (#18)

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 <[email protected]>
Co-authored-by: Lunny Xiao <[email protected]>
Co-committed-by: Lunny Xiao <[email protected]>

client/client.go

@@ -10,4 +10,5 @@ type Client interface {
 	pingv1connect.PingServiceClient
 	runnerv1connect.RunnerServiceClient
 	Address() string
+	Insecure() bool
 }