Add major version to docker tags (#2586)

* Add major version to docker tags

* Update changelog

.github/workflows/docker-image.yml

@@ -21,6 +21,7 @@ jobs:
         with:
           images: ghostfolio/ghostfolio
           tags: |
+            type=semver,pattern={{major}}
             type=semver,pattern={{version}}
 
       - name: Set up QEMU

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Added
+
+- Added a new tag with the major version to the docker image on _Docker Hub_
+
 ### Fixed
 
 - Loosened the validation in the activities import (expects values greater than or equal to 0 for `fee`, `quantity` and `unitPrice`)