Fixed Altair check (#119)

* added api for checking altair upgrade

* fixed lint

* added licence

* fixed supportAltairUpgrade function

Author: sadiq1971

graph/schema.resolvers.go

@@ -226,27 +226,27 @@ func supportAltairUpgrade(clientName, ver string) bool {
 	switch svcModels.ClientName(clientName) {
 	case svcModels.PrysmClient:
 		v, _ := version.NewVersion("v2.0.0")
-		if v.GreaterThanOrEqual(clientVersion) {
+		if clientVersion.GreaterThanOrEqual(v) {
 			return true
 		}
 	case svcModels.TekuClient:
 		v, _ := version.NewVersion("v21.9.2")
-		if v.GreaterThanOrEqual(clientVersion) {
+		if clientVersion.GreaterThanOrEqual(v) {
 			return true
 		}
 	case svcModels.LighthouseClient:
 		v, _ := version.NewVersion("v2.0.0")
-		if v.GreaterThanOrEqual(clientVersion) {
+		if clientVersion.GreaterThanOrEqual(v) {
 			return true
 		}
 	case svcModels.NimbusClient:
 		v, _ := version.NewVersion("v1.5.0")
-		if v.GreaterThanOrEqual(clientVersion) {
+		if clientVersion.GreaterThanOrEqual(v) {
 			return true
 		}
 	case svcModels.LodestarClient:
 		v, _ := version.NewVersion("v0.31.0")
-		if v.GreaterThanOrEqual(clientVersion) {
+		if clientVersion.GreaterThanOrEqual(v) {
 			return true
 		}
 	default: