chore(deps): update debian:13-slim docker digest to 4e401d9

Dockerfile

@@ -38,7 +38,7 @@ RUN case "$TARGETARCH" in \
 
 ################################################################################
 # FFmpeg builder stage
-FROM debian:13-slim@sha256:b6e2a152f22a40ff69d92cb397223c906017e1391a73c952b588e51af8883bf8 AS ffmpeg-builder
+FROM debian:13-slim@sha256:4e401d95de7083948053197a9c3913343cd06b706bf15eb6a0c3ccd26f436a0e AS ffmpeg-builder
 RUN apt-get update && \
   apt-get install -y --no-install-recommends ffmpeg
 COPY --from=yt-dlp-builder /rootfs/bin/yt-dlp /yt-dlp

renovate.json

@@ -14,5 +14,12 @@
       "depNameTemplate": "yt-dlp/yt-dlp",
       "versioningTemplate": "regex:^(?<major>\\d{4})\\.(?<minor>\\d{2})\\.(?<patch>\\d{2})$"
     }
+  ],
+  "packageRules": [
+    {
+      "description": "Automerge digest-level image updates",
+      "matchUpdateTypes": ["digest"],
+      "automerge": true
+    }
   ]
 }