Use v18.06.3-ce tag for API v1.38

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Author: thaJeztah

_scripts/fetch-upstream-resources.sh

@@ -81,7 +81,7 @@ wget --quiet --directory-prefix=./engine/api/v1.34/ https://raw.githubuserconten
 wget --quiet --directory-prefix=./engine/api/v1.35/ https://raw.githubusercontent.com/docker/docker-ce/v17.12.1-ce/components/engine/api/swagger.yaml || (echo "Failed 1.35 swagger download" && exit 1)
 wget --quiet --directory-prefix=./engine/api/v1.36/ https://raw.githubusercontent.com/docker/docker-ce/v18.02.0-ce/components/engine/api/swagger.yaml || (echo "Failed 1.36 swagger download" && exit 1)
 wget --quiet --directory-prefix=./engine/api/v1.37/ https://raw.githubusercontent.com/docker/docker-ce/v18.03.1-ce/components/engine/api/swagger.yaml || (echo "Failed 1.37 swagger download" && exit 1)
-wget --quiet --directory-prefix=./engine/api/v1.38/ https://raw.githubusercontent.com/docker/docker-ce/18.06/components/engine/api/swagger.yaml || (echo "Failed 1.38 swagger download" && exit 1)
+wget --quiet --directory-prefix=./engine/api/v1.38/ https://raw.githubusercontent.com/docker/docker-ce/v18.06.3-ce/components/engine/api/swagger.yaml || (echo "Failed 1.38 swagger download" && exit 1)
 wget --quiet --directory-prefix=./engine/api/v1.39/ https://raw.githubusercontent.com/docker/docker-ce/18.09/components/engine/api/swagger.yaml || (echo "Failed 1.39 swagger download" && exit 1)
 wget --quiet --directory-prefix=./engine/api/v1.40/ https://raw.githubusercontent.com/docker/docker-ce/19.03/components/engine/api/swagger.yaml || (echo "Failed 1.40 swagger download" && exit 1)