fix jar location

Author: chingor13

sdk-platform-java/.cloudbuild/library_generation/library_generation.Dockerfile

@@ -94,7 +94,7 @@ ENV JAVA_FORMATTER_LOCATION="${HOME}/.library_generation/google-java-format.jar"
 # Note that the destination is a well-known location that will be assumed at runtime
 # We hard-code the location string to avoid making it configurable (via ARG) as
 # well as to avoid it making it overridable at runtime (via ENV).
-COPY --from=ggj-build "/google-cloud-java/sdk-platform-java/gapic-generator-java.jar" "${HOME}/.library_generation/gapic-generator-java.jar"
+COPY --from=ggj-build "/google-cloud-java/gapic-generator-java.jar" "${HOME}/.library_generation/gapic-generator-java.jar"
 RUN chmod 755 "${HOME}/.library_generation/gapic-generator-java.jar"
 ENV GAPIC_GENERATOR_LOCATION="${HOME}/.library_generation/gapic-generator-java.jar"