dockerfile: update docker-py

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

Dockerfile

@@ -186,7 +186,7 @@ RUN set -x \
 	&& rm -rf "$GOPATH"
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT dc2b24dcdd4ed7c8f6874ee5dd95716761ab6c93
+ENV DOCKER_PY_COMMIT a962578e515185cf06506050b2200c0b81aa84ef
 # To run integration tests docker-pycreds is required.
 # Before running the integration tests conftest.py is
 # loaded which results in loads auth.py that

Dockerfile.aarch64

@@ -142,7 +142,7 @@ RUN set -x \
 	&& rm -rf "$GOPATH"
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT dc2b24dcdd4ed7c8f6874ee5dd95716761ab6c93
+ENV DOCKER_PY_COMMIT a962578e515185cf06506050b2200c0b81aa84ef
 # Before running the integration tests conftest.py is
 # loaded which results in loads auth.py that
 # imports the docker-pycreds module.

Dockerfile.armhf

@@ -137,7 +137,7 @@ RUN set -x \
 	&& rm -rf "$GOPATH"
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT dc2b24dcdd4ed7c8f6874ee5dd95716761ab6c93
+ENV DOCKER_PY_COMMIT a962578e515185cf06506050b2200c0b81aa84ef
 RUN git clone https://github.com/docker/docker-py.git /docker-py \
 	&& cd /docker-py \
 	&& git checkout -q $DOCKER_PY_COMMIT \

Dockerfile.ppc64le

@@ -143,7 +143,7 @@ RUN set -x \
 	&& rm -rf "$GOPATH"
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT dc2b24dcdd4ed7c8f6874ee5dd95716761ab6c93
+ENV DOCKER_PY_COMMIT a962578e515185cf06506050b2200c0b81aa84ef
 RUN git clone https://github.com/docker/docker-py.git /docker-py \
 	&& cd /docker-py \
 	&& git checkout -q $DOCKER_PY_COMMIT \

Dockerfile.s390x

@@ -136,7 +136,7 @@ RUN set -x \
 	&& rm -rf "$GOPATH"
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT dc2b24dcdd4ed7c8f6874ee5dd95716761ab6c93
+ENV DOCKER_PY_COMMIT a962578e515185cf06506050b2200c0b81aa84ef
 RUN git clone https://github.com/docker/docker-py.git /docker-py \
 	&& cd /docker-py \
 	&& git checkout -q $DOCKER_PY_COMMIT \