Use nginx 1.17.3

Dockerfile

@@ -1,4 +1,4 @@
-FROM nginx:1.17.2
+FROM nginx:1.17.3
 LABEL maintainer="Jason Wilder mail@jasonwilder.com"
 
 # Install wget and install/updates certificates

Dockerfile.alpine

@@ -1,4 +1,4 @@
-FROM nginx:1.17.2-alpine
+FROM nginx:1.17.3-alpine
 LABEL maintainer="Jason Wilder mail@jasonwilder.com"
 
 # Install wget and install/updates certificates