chore(deps): Bump the all-npm-version-updates group across 2 directories with 3 updates (#2653)

Bumps the all-npm-version-updates group with 1 update in the /demo/db
directory: postgis/postgis.
Bumps the all-npm-version-updates group with 2 updates in the
/demo/frontend directory: node and nginx.

Updates `postgis/postgis` from `0544d3f` to `9f9303f`

Updates `node` from `5209bca` to `cf38e1f`

Updates `nginx` from `f46cb72` to `e7257f1`


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demo/db/Dockerfile

@@ -1,4 +1,4 @@
-FROM postgis/postgis:18-3.6@sha256:0544d3f21f1e069f8ed506bfdaf44b5bed8a1c317614dc7df2ac6c0f6f911ccd
+FROM postgis/postgis:18-3.6@sha256:9f9303f925b5da02c8b614a01b606041e863d001e415a098808002012fde0883
 
 RUN set -x \
   && apt-get update \

demo/frontend/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:alpine@sha256:5209bcaca9836eb3448b650396213dbe9d9a34d31840c2ae1f206cb2986a8543 AS builder
+FROM node:alpine@sha256:cf38e1f3c28ac9d81cdc0c51d8220320b3b618780e44ef96a39f76f7dbfef023 AS builder
 
 WORKDIR /usr/src/app
 
@@ -9,6 +9,6 @@ RUN yarn install
 COPY . .
 RUN yarn run build
 
-FROM nginx:alpine@sha256:f46cb72c7df02710e693e863a983ac42f6a9579058a59a35f1ae36c9958e4ce0
+FROM nginx:alpine@sha256:e7257f1ef28ba17cf7c248cb8ccf6f0c6e0228ab9c315c152f9c203cd34cf6d1
 COPY nginx.conf /etc/nginx/nginx.conf
 COPY --from=builder /usr/src/app/dist /usr/share/nginx/html