[release] 1.13.0 - Support Multi SDK Instances (#231)

New Feature
- Add support for having multiple StatsigServer instances 
- CAVEA: Multi-instances Statsig Server will not be compatible if you
are using Data Store, data will override each other among projects
- Add log event dedupe logic, in 1 minute time interval, exposure event
will be deduped if the same config, user, and evaluation result is being
logged multiple times. Custom events (events called with logEvent) will
not be deduped





>Included In This Release
>- 72e910c weihao-statsig
>   - Multi Instance For Java Server (#226)
>- 11c5644 Xin Li
>   - Log event deduper (#230)

Author: xinlili-statsig

Diff for: gradle.properties

@@ -6,7 +6,7 @@ RELEASE_SIGNING_ENABLED=true
 
 GROUP=com.statsig.serversdk
 POM_ARTIFACT_ID=serversdk
-VERSION_NAME=1.12.1
+VERSION_NAME=1.13.0
 
 POM_NAME=Statsig Server SDK
 POM_DESCRIPTION=A feature gating and a/b testing library for statsig

Diff for: src/main/kotlin/com/statsig/sdk/StatsigMetadata.kt

@@ -6,7 +6,7 @@ import com.google.gson.annotations.SerializedName
 import java.util.Properties
 import java.util.UUID
 
-private const val VERSION = "1.12.1"
+private const val VERSION = "1.13.0"
 
 internal data class StatsigMetadata(@SerializedName("sdkType") var sdkType: String = "java-server", @SerializedName("sessionID") var sessionID: String = UUID.randomUUID().toString(), @SerializedName("languageVersion") var languageVersion: String = System.getProperty("java.version"), @SerializedName("exposureLoggingDisabled") var exposureLoggingDisabled: Boolean? = null) {
     @SerializedName("sdkVersion")