chore: bump kroki from 0.24.1 to 0.28.0 (#268)

yuzutech/kroki@v0.24.1...v0.28.0

Co-authored-by: Konstantin <[email protected]>

Author: hf-kklein

docker-compose.yaml

@@ -1,6 +1,6 @@
 services:
   kroki:
-    image: yuzutech/kroki:0.24.1
+    image: yuzutech/kroki:0.28.0
     ports:
       - "8000:8000"  # Expose localhost:8000
       # this is required for the test_main.py to directly use kroki
@@ -21,4 +21,4 @@ services:
     # the .env file contains the parameter which the user can set
     env_file:
       - path: .env
-        required: true  # default is true
+        required: true  # default is true