feat: add skipped status as step result (#950)

Github sets the outcome and conclusion to skipped
and this PR does the same during the pipeline run for
the StepResults in act.

Co-authored-by: Björn Brauer <bjoern.brauer@new-work.se>

Co-authored-by: Björn Brauer <bjoern.brauer@new-work.se>

pkg/runner/run_context.go

@@ -326,6 +326,8 @@ func (rc *RunContext) newStepExecutor(step *model.Step) common.Executor {
 
 		if !runStep {
 			log.Debugf("Skipping step '%s' due to '%s'", sc.Step.String(), sc.Step.If.Value)
+			rc.StepResults[rc.CurrentStep].Conclusion = model.StepStatusSkipped
+			rc.StepResults[rc.CurrentStep].Outcome = model.StepStatusSkipped
 			return nil
 		}