[release/v1.38.x] Fix incorrect SDK version included in release notes (…

…#1428)

Co-authored-by: Trask Stalnaker <trask.stalnaker@gmail.com>

.github/workflows/release.yml

@@ -132,10 +132,13 @@ jobs:
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
+          instrumentation_version=$(grep -Po "val otelInstrumentationVersion = \"\K[0-9]+.[0-9]+.[0-9]+" dependencyManagement/build.gradle.kts)
+
           # conditional blocks not indented because of the heredoc
           if [[ $VERSION == *.0 ]]; then
           cat > /tmp/release-notes.txt << EOF
-          This release targets the OpenTelemetry SDK $VERSION.
+          This release targets the OpenTelemetry Java Instrumentation
+          [$instrumentation_version](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/tag/v$instrumentation_version).
 
           EOF
           else

dependencyManagement/build.gradle.kts

@@ -7,13 +7,15 @@ data class DependencySet(val group: String, val version: String, val modules: Li
 val dependencyVersions = hashMapOf<String, String>()
 rootProject.extra["versions"] = dependencyVersions
 
+val otelInstrumentationVersion = "2.7.0-alpha"
+
 val DEPENDENCY_BOMS = listOf(
   "com.fasterxml.jackson:jackson-bom:2.17.2",
   "com.google.guava:guava-bom:33.3.0-jre",
   "com.linecorp.armeria:armeria-bom:1.30.0",
   "org.junit:junit-bom:5.11.0",
   "io.grpc:grpc-bom:1.66.0",
-  "io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha:2.7.0-alpha",
+  "io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha:${otelInstrumentationVersion}",
   "org.testcontainers:testcontainers-bom:1.20.1"
 )