Set version for oxipng library

Author: Rub21

images/web/Dockerfile

@@ -123,7 +123,8 @@ RUN echo "gem 'terser', '~> 1.1.3'" >> Gemfile
 # RUN gem install nokogiri -- --use-system-libraries
 
 RUN apt-get install -y cargo
-RUN git clone https://github.com/shssoichiro/oxipng.git
+# Set version 5.0.1 for oxipng
+RUN git clone https://github.com/shssoichiro/oxipng.git && cd oxipng && git checkout c888142bcb7a68a430245cb3eae5b6039aeb0e56
 RUN cd oxipng && cargo build --release && cp target/release/oxipng /usr/local/bin
 
 # Install app dependencies