fix: update before install and update openjdk

Dockerfile

@@ -1,4 +1,4 @@
-FROM openjdk:16-slim-buster
+FROM openjdk:16.0.2-slim-buster
 
 RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates ssh bash
 
@@ -52,6 +52,7 @@ RUN mkdir -p "$GOPATH/src" "$GOPATH/bin" && chmod -R 777 "$GOPATH"
 
 RUN curl -sL https://deb.nodesource.com/setup_15.x | bash - && apt-get install -y nodejs
 # the following is a workaround for openjdk-11-jre-headless erroring due to not having a man path in slim-debian
+RUN apt-get update -y
 RUN apt-get install -y --no-install-recommends python3 python3-dev python3-pip ruby jq gnupg git gettext libffi6 libffi-dev libssl-dev php composer php-curl php7.3-tokenizer php-dom php-xml php-simplexml php-xmlwriter maven
 # RUN apk add -U --no-cache ca-certificates bash nodejs npm python3 python3-dev py-pip ruby jq build-base gnupg git openssh curl gettext libffi libffi-dev openssl-dev php composer php-curl php7-tokenizer wget php-dom php-xml php-simplexml php-xmlwriter maven