build(deps): bump nginxinc/nginx-unprivileged in /docker

Bumps nginxinc/nginx-unprivileged from `c7e34c1` to `0afff08`.

---
updated-dependencies:
- dependency-name: nginxinc/nginx-unprivileged
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

docker/Dockerfile.alpine

@@ -1,4 +1,4 @@
-FROM nginxinc/nginx-unprivileged:1.27.0-alpine@sha256:c7e34c184cdd7823886f34a2f3ecc69e0be99e80fb75d79747a00bc3005c7e69
+FROM nginxinc/nginx-unprivileged:1.27.0-alpine@sha256:0afff08e3cee90c8c331ecd9171dd045ab7539c52901b650646138cfd92cc99f
 
 # Arguments that can be passed at build time
 ARG COMMIT_SHA=unknown