Update ghcr.io/renovatebot/renovate Docker tag to v43.52.0

Renovate communicates with the API over the local port, but gets the public clone url back. 
Use a hostrule to override the public adress with the internal one

.gitea/workflows/renovate.yaml

@@ -13,9 +13,9 @@ on:
 jobs:
   renovate:
     runs-on: ubuntu-latest
-    container: ghcr.io/renovatebot/renovate:42.85.8
+    container: ghcr.io/renovatebot/renovate:43.52.0
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: renovate
         env:
           RENOVATE_CONFIG_FILE: ${{ gitea.workspace }}/config.js

config.js

@@ -1,6 +1,6 @@
 module.exports = {
     "platform": "gitea",
-    "endpoint": "https://git.akumatic.eu/api/v1", // replace it with your actual endpoint
+    "endpoint": "http://server:3000/api/v1",
     "username": "renovate-bot",
     "gitAuthor": "Renovate <renovate.bot@akumatic.eu>",
     "autodiscover": true,
@@ -10,4 +10,13 @@ module.exports = {
 		"$schema": "https://docs.renovatebot.com/renovate-schema.json"
 	},
     "optimizeForDisabled": true,
+    hostRules: [
+        {
+            matchHost: "git.akumatic.eu",
+            hostType: "gitea",
+            resolveHost: "server",
+            protocol: "http",
+            port: 3000
+        }
+    ]
 };