Update 3.13-rc to 3.13.0a4, pip 24.0

Author: docker-library-bot

3.13-rc/alpine3.18/Dockerfile

@@ -73,7 +73,7 @@
       "version": "https://github.com/pypa/get-pip/commit/dbf0c85f76fb6e1ab42aa672ffca6f0a675d9ee4"
     },
     "pip": {
-      "version": "23.3.2"
+      "version": "24.0"
     },
     "variants": [
       "bookworm",
@@ -85,7 +85,7 @@
       "windows/windowsservercore-ltsc2022",
       "windows/windowsservercore-1809"
     ],
-    "version": "3.13.0a3"
+    "version": "3.13.0a4"
   },
   "3.8": {
     "get-pip": {