chore(deps): update dependency postfixadmin/postfixadmin to v4

.gitea/workflows/update-docker-hub-description.yaml

@@ -14,7 +14,7 @@ jobs:
     - ubuntu-latest
     steps:
     - uses: actions/checkout@v5.0.0
-    - uses: peter-evans/dockerhub-description@v5.0.0
+    - uses: peter-evans/dockerhub-description@v4.0.2
       with:
         username: ${{ secrets.DOCKER_IO_USERNAME }}
         password: ${{ secrets.DOCKER_IO_PASSWORD }}

Makefile

@@ -1,6 +1,6 @@
 # POSTFIXADMIN_VERSION
 # Only required to install a specify version
-POSTFIXADMIN_VERSION?=3.3.16 # renovate: datasource=github-tags depName=postfixadmin/postfixadmin extractVersion='postfixadmin-(?<version>\d+\.\d+\.\d+)$'
+POSTFIXADMIN_VERSION?=4.0.1 # renovate: datasource=github-tags depName=postfixadmin/postfixadmin extractVersion='postfixadmin-(?<version>\d+\.\d+\.\d+)$'
 
 # PODMAN_BIN's and tools
 PODMAN_BIN?=$(shell which podman)