[release] v1.30.0 - Initialization details (#235)

### Improvements
- Return details upon initialization, (success/fail, error, duration,
data source)





>Included In This Release
>- 14ddbee kenny-statsig
>   - Fix statsig context race condition (#236)
>- 6e44656 kenny-statsig
>   - Init details (#233)
>- a4fd835 kenny-statsig
>   - Refactor statsig context (#229)
>- 59cf3a9 Weihao Ding
>   - optimize: eval process (#234)

statsig_metadata.go

@@ -14,7 +14,7 @@ type statsigMetadata struct {
 func getStatsigMetadata() statsigMetadata {
 	return statsigMetadata{
 		SDKType:         "go-sdk",
-		SDKVersion:      "v1.29.1",
+		SDKVersion:      "v1.30.0",
 		LanguageVersion: runtime.Version()[2:],
 		SessionID:       SessionID(),
 	}