Fix release script (#7083)

was missing one version update, see #7077

.github/scripts/update-version.sh

@@ -14,6 +14,8 @@ sed -Ei "s/val alphaVersion = \"[^\"]*\"/val alphaVersion = \"$alpha_version\"/"
 sed -Ei "s/(opentelemetryJavaagent *: )\"[^\"]*\"/\1\"$version\"/" examples/distro/build.gradle
 sed -Ei "s/(opentelemetryJavaagentAlpha *: )\"[^\"]*\"/\1\"$alpha_version\"/" examples/distro/build.gradle
 
+sed -Ei "s/(classpath \"io.opentelemetry.instrumentation:gradle-plugins:)[^\"]*\"/\1$alpha_version\"/" examples/distro/build.gradle
+
 sed -Ei "s/(opentelemetryJavaagent *: )\"[^\"]*\"/\1\"$version\"/" examples/extension/build.gradle
 sed -Ei "s/(opentelemetryJavaagentAlpha *: )\"[^\"]*\"/\1\"$alpha_version\"/" examples/extension/build.gradle