chore: change docker image name

docker-compose.yml

 version: '3.3'
 services:
   web:
-    image: tubes-1:latest
+    image: if3110-2023-02-36-php-app:latest
     ports:
       - 8000:80
     build: 

scripts/build-image.sh

-docker build -t tubes-1:latest .
+docker build -t if3110-2023-02-36-php-app:latest .
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