Bump nginx from 1.21.5 to 1.21.6

Author: JonasAlfredsson

docs/dockerhub_tags.md

@@ -17,7 +17,8 @@ are updated.
 
 | Major | Minor | Patch | Nginx              |
 | ----: | ----: | ----: | :----------------- |
-| 3     | 3.0   | 3.0.1 | 3.0.1-nginx1.21.5  |
+| 3     | 3.0   | 3.0.1 | 3.0.1-nginx1.21.6  |
+|       |       |       | 3.0.1-nginx1.21.5  |
 |       |       |       | 3.0.1-nginx1.21.4  |
 |       |       |       | 3.0.1-nginx1.21.3  |
 |       |       | 3.0.0 | 3.0.0-nginx1.21.3  |

src/Dockerfile

@@ -1,4 +1,4 @@
-FROM nginx:1.21.5
+FROM nginx:1.21.6
 LABEL maintainer="Jonas Alfredsson <jonas.alfredsson@protonmail.com>"
 
 ENV CERTBOT_DNS_AUTHENTICATORS \

src/Dockerfile-alpine

@@ -1,4 +1,4 @@
-FROM nginx:1.21.5-alpine
+FROM nginx:1.21.6-alpine
 LABEL maintainer="Jonas Alfredsson <jonas.alfredsson@protonmail.com>"
 
 ENV CERTBOT_DNS_AUTHENTICATORS \