Add pgp sign for site packages.sury.org

7_1/Dockerfile

@@ -10,6 +10,7 @@ RUN apt-get update; \
     apt-get install -yq wget apt-transport-https lsb-release ca-certificates;\
     wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg; \
     sh -c 'echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list'; \
+    wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg; \
     apt-get update; \
     apt-get install -yq python curl git vim zip python-pip iputils-ping \
                         tmux graphviz build-essential unzip mysql-client \