chore: update dummy database url for docker build

Dockerfile

@@ -20,7 +20,7 @@ COPY . .
 
 # Environment variables must be present at build time
 ENV NEXT_TELEMETRY_DISABLED=1
-ENV DATABASE_URL="file:dev.db"
+ENV DATABASE_URL="postgresql://dummy:dummy@localhost:5432/dummy"
 
 # Generate Prisma Client
 RUN npx prisma generate
@@ -34,7 +34,7 @@ WORKDIR /app
 
 ENV NODE_ENV=production
 ENV NEXT_TELEMETRY_DISABLED=1
-ENV DATABASE_URL="file:dev.db"
+ENV DATABASE_URL="postgresql://dummy:dummy@localhost:5432/dummy"
 
 RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs