Docker: Go component update: 1.15.3 -> 1.15.6

Author: kmoppel

Dockerfile

@@ -40,7 +40,7 @@ ENV GIT_TIME=${GIT_TIME}
 
 # Go installation [https://golang.org/dl/]
 # Grafana config customizations, Web UI requirements, compilation of the Go gatherer
-RUN wget -q -O /tmp/go.tar.gz https://dl.google.com/go/go1.15.3.linux-amd64.tar.gz \
+RUN wget -q -O /tmp/go.tar.gz https://dl.google.com/go/go1.15.6.linux-amd64.tar.gz \
     && tar -C /usr/local -xzf /tmp/go.tar.gz \
     && export PATH=$PATH:/usr/local/go/bin \
     && cp /pgwatch2/bootstrap/grafana_custom_config.ini /etc/grafana/grafana.ini \

docker/Dockerfile-daemon

@@ -19,7 +19,7 @@ ENV GIT_TIME=${GIT_TIME}
 ### Install Go and compile the gatherer daemon
 ###
 
-RUN wget -q -O /tmp/go.tar.gz https://dl.google.com/go/go1.15.3.linux-amd64.tar.gz \
+RUN wget -q -O /tmp/go.tar.gz https://dl.google.com/go/go1.15.6.linux-amd64.tar.gz \
     && tar -C /usr/local -xzf /tmp/go.tar.gz \
     && export PATH=$PATH:/usr/local/go/bin \
     && cd /pgwatch2 && bash build_gatherer.sh \

docker/Dockerfile-nonroot

@@ -49,7 +49,7 @@ ENV GIT_TIME=${GIT_TIME}
 
 # Go installation [https://golang.org/dl/]
 # Grafana config customizations, Web UI requirements, compilation of the Go gatherer
-RUN wget -q -O /tmp/go.tar.gz https://dl.google.com/go/go1.15.3.linux-amd64.tar.gz \
+RUN wget -q -O /tmp/go.tar.gz https://dl.google.com/go/go1.15.6.linux-amd64.tar.gz \
     && tar -C /usr/local -xzf /tmp/go.tar.gz \
     && export PATH=$PATH:/usr/local/go/bin \
     && cp /pgwatch2/bootstrap/grafana_custom_config.ini /etc/grafana/grafana.ini \

docker/Dockerfile-postgres

@@ -32,7 +32,7 @@ ENV GIT_TIME=${GIT_TIME}
 
 # Go installation [https://golang.org/dl/]
 # Grafana config customizations, Web UI requirements, compilation of the Go gatherer
-RUN wget -q -O /tmp/go.tar.gz https://dl.google.com/go/go1.15.3.linux-amd64.tar.gz \
+RUN wget -q -O /tmp/go.tar.gz https://dl.google.com/go/go1.15.6.linux-amd64.tar.gz \
     && tar -C /usr/local -xzf /tmp/go.tar.gz \
     && export PATH=$PATH:/usr/local/go/bin \
     && cp /pgwatch2/bootstrap/grafana_custom_config.ini /etc/grafana/grafana.ini \