Update references to version 23.12.3

Dockerfile

@@ -1,5 +1,5 @@
 FROM alpine:3 as bookstack
-ENV BOOKSTACK_VERSION=23.12.2
+ENV BOOKSTACK_VERSION=23.12.3
 RUN apk add --no-cache curl tar
 RUN set -x; \
     curl -SL -o bookstack.tar.gz https://github.com/BookStackApp/BookStack/archive/v${BOOKSTACK_VERSION}.tar.gz  \

README.md

@@ -67,8 +67,8 @@ Networking changed in Docker v1.9, so you need to do one of the following steps.
    ```bash
    docker run -d --link bookstack_db_:mysql \
    -p 8080:8080 \
-   --name bookstack_23.12.2 \
-   solidnerd/bookstack:23.12.2
+   --name bookstack_23.12.3 \
+   solidnerd/bookstack:23.12.3
    ```
 
 ### Docker 1.9+
@@ -101,8 +101,8 @@ Networking changed in Docker v1.9, so you need to do one of the following steps.
    -e DB_PASSWORD=secret \
    -e APP_URL=http://example.com \
    -p 8080:8080 \
-   --name="bookstack_23.12.2" \
-    solidnerd/bookstack:23.12.2
+   --name="bookstack_23.12.3" \
+    solidnerd/bookstack:23.12.3
    ```
 
     The APP_URL parameter should be the base URL for your BookStack instance without

VERSION

@@ -1 +1 @@
-23.12.2
+23.12.3

docker-compose.yml

@@ -11,7 +11,7 @@ services:
     - mysql-data:/var/lib/mysql
 
   bookstack:
-    image: solidnerd/bookstack:23.12.2
+    image: solidnerd/bookstack:23.12.3
     depends_on:
     - mysql
     environment: