build: Bump alpine from 3.17.2 to 3.17.3

Bumps alpine from 3.17.2 to 3.17.3.

---
updated-dependencies:
- dependency-name: alpine
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Dockerfile

@@ -1,6 +1,6 @@
 FROM nginxproxy/docker-gen:0.10.2 AS docker-gen
 
-FROM alpine:3.17.2
+FROM alpine:3.17.3
 
 ARG GIT_DESCRIBE
 ARG ACMESH_VERSION=2.9.0