Upgrade to Alpine 3.23 (#488)

See:

* https://wiki.alpinelinux.org/wiki/Release_Notes_for_Alpine_3.23.0
* https://www.alpinelinux.org/posts/Alpine-3.23.0-released.html

Signed-off-by: Wouter Born <github@maindrain.net>

Author: wborn

README.md

@@ -79,7 +79,7 @@ The openHAB Docker images are available in the [openhab/openhab](https://hub.doc
 **Distributions:**
 
 * `debian` for Debian 13 "trixie" (default when not specified in tag) ([Dockerfile](https://github.com/openhab/openhab-docker/blob/main/debian/Dockerfile))
-* `alpine` for Alpine 3.22 ([Dockerfile](https://github.com/openhab/openhab-docker/blob/main/alpine/Dockerfile))
+* `alpine` for Alpine 3.23 ([Dockerfile](https://github.com/openhab/openhab-docker/blob/main/alpine/Dockerfile))
 
 The Alpine images are substantially smaller than the Debian images but may be less compatible because OpenJDK is used (see [Prerequisites](https://www.openhab.org/docs/installation/#prerequisites) for known disadvantages).
 Older container images may use older versions of the Debian and Alpine base images.

alpine/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.22
+FROM alpine:3.23
 
 ARG BUILD_DATE
 ARG VCS_REF