Update dependency nginx to v1.22 (#192)

renovate[bot] · renovate-bot · web-flow · commit ef04704037b7 · 2022-05-30T19:43:03.000+09:00
Co-authored-by: Renovate Bot &lt;bot@renovateapp.com&gt;
diff --git a/infra/docker/nginx/Dockerfile b/infra/docker/nginx/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.20
+FROM nginx:1.22
 
 WORKDIR /data
 
