[release] v1.32.0 - Dynamic Config pulse, narrow config type in GCIR, event sampling (#255)

### New Features
- Add support for measuring pulse in Dynamic Configs
### Improvements
- New option in GetClientInitializeResponse to include narrow config
types (e.g. experiment, dynamic config)
- Sampling for non-analytic exposure events





>Included In This Release
>- 81377c7 kat-statsig
>   - sdk sampling (#250)
>- f73e01e kenny-statsig
>   - [SDK-974] Option to include narrow config type in GCIR (#253)
>- c56cf4a kat-statsig
>   - move options (#252)
>- 815d529 kat-statsig
>   - sdk configs (#251)
>- 3e890c8 kat-statsig
>   - add dynamic config pulse (#249)

Author: kenny-statsig

statsig_metadata.go

@@ -14,7 +14,7 @@ type statsigMetadata struct {
 func getStatsigMetadata() statsigMetadata {
 	return statsigMetadata{
 		SDKType:         "go-sdk",
-		SDKVersion:      "v1.31.0",
+		SDKVersion:      "v1.32.0",
 		LanguageVersion: runtime.Version()[2:],
 		SessionID:       SessionID(),
 	}