Update Hedgedoc to 1.9.3

https://github.com/hedgedoc/hedgedoc/releases/tag/1.9.3
It contains a security update, so updating is recommended:
GHSA-q6vv-2q26-j7rx

Author: JJ-8

docker-compose.dev.yml

@@ -15,7 +15,7 @@ services:
     ports:
       - '5432:5432'
   hedgedoc:
-    image: quay.io/hedgedoc/hedgedoc:1.9.2-alpine
+    image: quay.io/hedgedoc/hedgedoc:1.9.3-alpine
     environment:
       CMD_DB_URL: 'postgres://ctfnote:ctfnote@db:5432/hedgedoc'
       CMD_URL_PATH: 'pad'

docker-compose.yml

@@ -42,7 +42,7 @@ services:
     ports:
       - 8080:80
   hedgedoc:
-    image: quay.io/hedgedoc/hedgedoc:1.9.2-alpine
+    image: quay.io/hedgedoc/hedgedoc:1.9.3-alpine
     environment:
       - CMD_DB_URL=postgres://ctfnote:ctfnote@db:5432/hedgedoc
       - CMD_URL_PATH=pad