chore(deps): update nginx docker tag to v1.31.6 (#235)

Dockerfile

@@ -1,4 +1,4 @@
-FROM amd64/nginx:1.31.5-alpine@sha256:1bb5d3d2b1cea4d7ef0b4cb909f8ead03818a318eb80ff88d494c8527e421555 as build
+FROM amd64/nginx:1.31.6-alpine@sha256:e3e4fc0d3e430a4937810f0486f972f39cf2c8b9cf140d3f0c24202792ee69f6 as build
 
 RUN apk add --update \
     wget
@@ -13,7 +13,7 @@ COPY ./ /site
 WORKDIR /site
 RUN hugo
 
-FROM amd64/nginx:1.31.5-alpine@sha256:1bb5d3d2b1cea4d7ef0b4cb909f8ead03818a318eb80ff88d494c8527e421555
+FROM amd64/nginx:1.31.6-alpine@sha256:e3e4fc0d3e430a4937810f0486f972f39cf2c8b9cf140d3f0c24202792ee69f6
 ADD default.conf /etc/nginx/conf.d/default.conf
 COPY --from=build /site/public /usr/share/nginx/html