Fix apostrophe in Children's Animation migration + bump CACHEBUST to v5

Escape single quote in seed-episodic-subgenres migration that caused
"column Children's Animation does not exist" PostgreSQL error.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker-compose.yml

@@ -47,7 +47,7 @@ services:
       context: ./backend
       dockerfile: Dockerfile
       args:
-        CACHEBUST: "4"
+        CACHEBUST: "5"
     restart: unless-stopped
     environment:
       # ── Core ─────────────────────────────────────────────
@@ -179,7 +179,7 @@ services:
       context: ./backend
       dockerfile: Dockerfile.ffmpeg
       args:
-        CACHEBUST: "4"
+        CACHEBUST: "5"
     restart: unless-stopped
     environment:
       ENVIRONMENT: production