Update base image.

9186834e · nimrod · eea25048 · 9186834e
Commit 9186834e authored 3 years ago by nimrod
--- a/Dockerfile
+++ b/Dockerfile
-FROM nginx:1.21.0-alpine
+FROM nginx:1.21.3-alpine
 # hadolint ignore=DL3018
 RUN rm -rf /etc/nginx/conf./* && \
    chmod 777 /run && \