Dockerfile: update go-swagger to fix validation on Go1.16
@@ -61,7 +61,7 @@ WORKDIR $GOPATH/src/github.com/go-swagger/go-swagger
# Install go-swagger for validating swagger.yaml
# This is https://github.com/kolyshkin/go-swagger/tree/golang-1.13-fix
# TODO: move to under moby/ or fix upstream go-swagger to work for us.
-ENV GO_SWAGGER_COMMIT 5e6cb12f7c82ce78e45ba71fa6cb1928094db050
+ENV GO_SWAGGER_COMMIT c56166c036004ba7a3a321e5951ba472b9ae298c
RUN --mount=type=cache,target=/root/.cache/go-build \
--mount=type=cache,target=/go/pkg/mod \
--mount=type=tmpfs,target=/go/src/ \
