Prometheus: Version detect bug (#71198)

* remove redundant request copy in backend, add more versions to semver lists

pkg/tsdb/prometheus/resource/resource.go

@@ -81,16 +81,5 @@ func (r *Resource) DetectVersion(ctx context.Context, req *backend.CallResourceR
 		Path:          "/api/v1/status/buildinfo",
 	}
 
-	resp, err := r.Execute(ctx, newReq)
-
-	if err != nil {
-		return nil, err
-	}
-
-	callResponse := &backend.CallResourceResponse{
-		Status: 200,
-		Body:   resp.Body,
-	}
-
-	return callResponse, nil
+	return r.Execute(ctx, newReq)
 }