🔥(CI) remove minio steps

Minio is not used anymore in the stack, and was removed during the project
initialization. Update the CI according to the current stack.

.github/workflows/meet.yml

@@ -168,25 +168,6 @@ jobs:
           path: "src/backend/core/templates/mail"
           key: mail-templates-${{ hashFiles('src/mail/mjml') }}
 
-      - name: Start Minio
-        run: |
-          docker pull minio/minio
-          docker run -d --name minio \
-            -p 9000:9000 \
-            -e "MINIO_ACCESS_KEY=impress" \
-            -e "MINIO_SECRET_KEY=password" \
-            -v /data/media:/data \
-            minio/minio server --console-address :9001 /data
-
-      - name: Configure MinIO
-        run: |
-          MINIO=$(docker ps | grep minio/minio | sed -E 's/.*\s+([a-zA-Z0-9_-]+)$/\1/')
-          docker exec ${MINIO} sh -c \
-            "mc alias set impress http://localhost:9000 impress password && \
-            mc alias ls && \
-            mc mb impress/impress-media-storage && \
-            mc version enable impress/impress-media-storage"
-
       - name: Install Python
         uses: actions/setup-python@v3
         with: