chore: upgrade nginx image to 1.25.2-alpine-sumo-1

[swiatekm-sumo]

This fixes #3365.

Checklist

• Changelog updated or skip changelog label added

[andrzej-stencel]

As of today (2023-11-03):

$ docker manifest inspect nginxinc/nginx-unprivileged:1.25.2-alpine | grep -A3 -B5 amd64
      {
         "mediaType": "application/vnd.oci.image.manifest.v1+json",
         "size": 1998,
         "digest": "sha256:29470f0f0d1d92cad7af0966abebac204c6f952fcf930748fee1d9df28487c15",
         "platform": {
            "architecture": "amd64",
            "os": "linux"
         }
      },
$ docker manifest inspect public.ecr.aws/sumologic/nginx-unprivileged:1.25.2-alpine-sumo-1 | grep -A3 -B5 amd64     
      {
         "mediaType": "application/vnd.oci.image.manifest.v1+json",
         "size": 1998,
         "digest": "sha256:29470f0f0d1d92cad7af0966abebac204c6f952fcf930748fee1d9df28487c15",
         "platform": {
            "architecture": "amd64",
            "os": "linux"
         }
      },

[sumo-backporter]

The backport to release-v3 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-release-v3 release-v3
# Navigate to the new working tree
cd .worktrees/backport-release-v3
# Create a new branch
git switch --create backport-3375-to-release-v3
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 f12509e7d6a7f8d985191d65f76116749796a8af
# Push it to GitHub
git push --set-upstream origin backport-3375-to-release-v3
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-release-v3

Then, create a pull request where the base branch is release-v3 and the compare/head branch is backport-3375-to-release-v3.