Update to Alpine 3.23

Drop Alpine 3.21 accordingly

Author: tianon

3.2/alpine3.21/Dockerfile 3.2/alpine3.23/Dockerfile3.2/alpine3.21/Dockerfile renamed to 3.2/alpine3.23/Dockerfile

@@ -33,8 +33,8 @@
       "slim-trixie",
       "bookworm",
       "slim-bookworm",
-      "alpine3.22",
-      "alpine3.21"
+      "alpine3.23",
+      "alpine3.22"
     ],
     "rust": {
       "version": "1.84.0"
@@ -103,8 +103,8 @@
       "slim-trixie",
       "bookworm",
       "slim-bookworm",
-      "alpine3.22",
-      "alpine3.21"
+      "alpine3.23",
+      "alpine3.22"
     ],
     "rust": {
       "version": "1.84.0"
@@ -173,8 +173,8 @@
       "slim-trixie",
       "bookworm",
       "slim-bookworm",
-      "alpine3.22",
-      "alpine3.21"
+      "alpine3.23",
+      "alpine3.22"
     ],
     "rust": {
       "version": "1.84.0"
@@ -250,8 +250,8 @@
       "slim-trixie",
       "bookworm",
       "slim-bookworm",
-      "alpine3.22",
-      "alpine3.21"
+      "alpine3.23",
+      "alpine3.22"
     ],
     "rust": {
       "version": "1.84.0"

3.3/alpine3.21/Dockerfile 3.3/alpine3.23/Dockerfile3.3/alpine3.21/Dockerfile renamed to 3.3/alpine3.23/Dockerfile

@@ -88,8 +88,8 @@ for version in "${versions[@]}"; do
 				empty # trailing comma hack
 			| ., "slim-" + .), # https://github.com/docker-library/ruby/pull/142#issuecomment-320012893
 			(
+				"3.23",
 				"3.22",
-				"3.21",
 				empty # trailing comma hack
 			| "alpine" + .)
 		]