Rebuild docker image to fix vulnerabilities existing in base alpine image

[Mart-Bogdan]

>docker scout quickview lucaslorentz/caddy-docker-proxy:2.9.1-alpine
    i New version 1.15.0 available (installed version is 1.13.0) at https://github.com/docker/scout-cli
          v SBOM of image already cached, 160 packages indexed

    i Base image was auto-detected. To get more accurate results, build images with max-mode provenance attestations.
      Review docs.docker.com ↗ for more information.

  Target               │  lucaslorentz/caddy-docker-proxy:2.9.1-alpine  │    3C    11H    28M     2L     5?
    digest             │  af05b412c6c0                                  │
  Base image           │  alpine:3                                      │    1C     5H    23M     0L     3?
  Refreshed base image │  alpine:3                                      │    0C     0H     0M     0L     1?
                       │                                                │    -1     -5    -23            -2
  Updated base image   │  alpine:3.19                                   │    0C     0H     0M     0L     1?
                       │                                                │    -1     -5    -23            -2

3 of them are critical

[Mart-Bogdan]

Closed in #672