Update docker base image

CHANGELOG.md

@@ -1,6 +1,9 @@
 # Changelog
 
 ## [Unreleased]
+### Changed
+- (docker) Faster images quantization.
+- (docker) Faster loading of GIF.
 
 ## [3.7.1] - 2022-08-01
 ### Fix

docker/Dockerfile

@@ -1,4 +1,4 @@
-ARG BASE_IMAGE_VERSION="v3.3.0"
+ARG BASE_IMAGE_VERSION="v3.3.1"
 
 FROM darthsim/imgproxy-base:${BASE_IMAGE_VERSION}