upgrade to 8.0.0

Author: valentinab25

Readme.md

@@ -7,12 +7,13 @@ This image is generic, thus you can obviously re-use it within
 your non-related EEA projects.
 
  - Alpine **3.22**
- - Varnish **7.7.3**
+ - Varnish **8.0.0**
  - Expose **80**, **8443**
 
 ## Supported tags and respective Dockerfile links
 
   - `:7` [*Dockerfile*](https://github.com/eea/eea.docker.varnish/blob/7.x/Dockerfile) (Alpine 3.22, Varnish 7.7.3)
+  - `:8` [*Dockerfile*](https://github.com/eea/eea.docker.varnish/blob/8.x/Dockerfile) (Alpine 3.22, Varnish 8.0.0)
 
 ### Stable and immutable tags
 
@@ -22,6 +23,7 @@ your non-related EEA projects.
   - `:7.5-1.0` [*Dockerfile*](https://github.com/eea/eea.docker.varnish/tree/7.5-1.0/Dockerfile) - Varnish: **7.5.0** Release: **1.0**
   - `:7.6-1.0` [*Dockerfile*](https://github.com/eea/eea.docker.varnish/tree/7.5-1.0/Dockerfile) - Varnish: **7.6.1** Release: **1.0**
   - `:7.7-1.1` [*Dockerfile*](https://github.com/eea/eea.docker.varnish/tree/7.5-1.0/Dockerfile) - Varnish: **7.7.3** Release: **1.1**
+  - `:8.0-1.0` [*Dockerfile*](https://github.com/eea/eea.docker.varnish/tree/7.5-1.0/Dockerfile) - Varnish: **8.0.0** Release: **1.0**
 
 See [older versions](https://github.com/eea/eea.docker.varnish/releases)