Update to Alpine 3.23 (#402)

Drop Alpine 3.21 accordingly

Author: tianon

5.1/alpine3.21/Dockerfile 5.1/alpine3.23/Dockerfile5.1/alpine3.21/Dockerfile renamed to 5.1/alpine3.23/Dockerfile

@@ -1,6 +1,6 @@
 {
   "5.1": {
-    "alpine": "3.22",
+    "alpine": "3.23",
     "debian": "trixie",
     "downloadUrl": "https://www.redmine.org/releases/redmine-5.1.10.tar.gz",
     "ruby": {
@@ -10,13 +10,13 @@
     "variants": [
       "trixie",
       "bookworm",
-      "alpine3.22",
-      "alpine3.21"
+      "alpine3.23",
+      "alpine3.22"
     ],
     "version": "5.1.10"
   },
   "6.0": {
-    "alpine": "3.22",
+    "alpine": "3.23",
     "debian": "trixie",
     "downloadUrl": "https://www.redmine.org/releases/redmine-6.0.7.tar.gz",
     "ruby": {
@@ -26,13 +26,13 @@
     "variants": [
       "trixie",
       "bookworm",
-      "alpine3.22",
-      "alpine3.21"
+      "alpine3.23",
+      "alpine3.22"
     ],
     "version": "6.0.7"
   },
   "6.1": {
-    "alpine": "3.22",
+    "alpine": "3.23",
     "debian": "trixie",
     "downloadUrl": "https://www.redmine.org/releases/redmine-6.1.0.tar.gz",
     "ruby": {
@@ -42,8 +42,8 @@
     "variants": [
       "trixie",
       "bookworm",
-      "alpine3.22",
-      "alpine3.21"
+      "alpine3.23",
+      "alpine3.22"
     ],
     "version": "6.1.0"
   }

5.1/alpine3.21/docker-entrypoint.sh 5.1/alpine3.23/docker-entrypoint.sh5.1/alpine3.21/docker-entrypoint.sh renamed to 5.1/alpine3.23/docker-entrypoint.sh

@@ -6,8 +6,8 @@ supportedDebianSuites=(
 	bookworm
 )
 supportedAlpineVersions=(
+	3.23
 	3.22
-	3.21
 )
 
 defaultDebianSuite="${supportedDebianSuites[0]}"