Update nginx:stable Docker digest to 43d3964

Dockerfile

@@ -5,7 +5,7 @@ WORKDIR /app
 COPY . .
 RUN yarn install && yarn build
 
-FROM nginx:stable@sha256:defdd267daef9a70ce322c3e6d8da716a4fd23e85b2fea311af076f1129186c2
+FROM nginx:stable@sha256:43d396487b4b924c47fa5823678e7e99f8241eda2394afd8f4fc8f3c286c2d5e
 COPY --from=builder /app/build /usr/share/nginx/html
 COPY nginx.conf /etc/nginx/conf.d/default.conf
 EXPOSE 80