feat: insert the daemon context in the poller context

The daemon context is needed when the context of a job or the poller
is done. Otherwise it is no longer possible to send a conclusion
report to Forgejo, short of creating a context.Background() which
poses its own set of problems.

- WithDaemonContext is used to store the daemon context
- The poller uses the daemon context instead of context.Background

internal/app/cmd/cmd.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"code.forgejo.org/forgejo/runner/v9/internal/pkg/common"
 	"code.forgejo.org/forgejo/runner/v9/internal/pkg/config"
 	"code.forgejo.org/forgejo/runner/v9/internal/pkg/ver"
 )
@@ -45,7 +46,7 @@ func Execute(ctx context.Context) {
 		Use:   "daemon",
 		Short: "Run as a runner daemon",
 		Args:  cobra.MaximumNArgs(1),
-		RunE:  runDaemon(ctx, &configFile),
+		RunE:  runDaemon(common.WithDaemonContext(ctx, ctx), &configFile),
 	}
 	rootCmd.AddCommand(daemonCmd)