Small release improvements (#416)

Author: trask

.github/scripts/update-sdk-version.sh

@@ -0,0 +1,7 @@
+#!/bin/bash -e
+
+version=$1
+
+alpha_version=${version}-alpha
+
+sed -Ei "s/val otelVersion = \"[^\"]*\"/val otelVersion = \"$version\"/" dependencyManagement/build.gradle.kts

.github/scripts/update-version.sh

@@ -5,7 +5,7 @@ version=$1
 if [[ $version == *-SNAPSHOT ]]; then
   alpha_version=${version//-SNAPSHOT/-alpha-SNAPSHOT}
 else
-  alpha_version=$version-alpha
+  alpha_version=${version}-alpha
 fi
 
 sed -Ei "s/val stableVersion = \"[^\"]*\"/val stableVersion = \"$version\"/" version.gradle.kts

dependencyManagement/build.gradle.kts

@@ -11,8 +11,7 @@ data class DependencySet(val group: String, val version: String, val modules: Li
 val dependencyVersions = hashMapOf<String, String>()
 rootProject.extra["versions"] = dependencyVersions
 
-// this variable is updated by opentelemetry-java-instrumentation release process, if you change its
-// name make sure that the instrumentation repo also reflects these changes
+// this line is managed by .github/scripts/update-sdk-version.sh
 val otelVersion = "1.16.0"
 
 val DEPENDENCY_BOMS = listOf(