openkal-llvm-runtime 0.12.0: register the descriptor

It pins openkal-musl exactly, so it could not be built until openkal-musl
0.16.0 was registered by the commit before this one. Its CI is green against
that version and the release is published on both mirrors:

  openkal-llvm-runtime 0.12.0  e009f619...

Author: Sunrisepeak

pkgs/o/openkal-llvm-runtime.lua

@@ -38,6 +38,13 @@ package = {
 
     xpm = {
         linux = {
+            ["0.12.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.12.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/openkal-llvm-runtime/releases/download/0.12.0/openkal-llvm-runtime-0.12.0.tar.gz",
+                },
+                sha256 = "e009f6195ef517c40beaf5093cde59764fc870502aab5967f5a2817f8df47cff",
+            },
             ["0.11.0"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.11.0.tar.gz",
@@ -194,6 +201,13 @@ package = {
             },
         },
         macosx = {
+            ["0.12.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.12.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/openkal-llvm-runtime/releases/download/0.12.0/openkal-llvm-runtime-0.12.0.tar.gz",
+                },
+                sha256 = "e009f6195ef517c40beaf5093cde59764fc870502aab5967f5a2817f8df47cff",
+            },
             ["0.11.0"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.11.0.tar.gz",
@@ -350,6 +364,13 @@ package = {
             },
         },
         windows = {
+            ["0.12.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.12.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/openkal-llvm-runtime/releases/download/0.12.0/openkal-llvm-runtime-0.12.0.tar.gz",
+                },
+                sha256 = "e009f6195ef517c40beaf5093cde59764fc870502aab5967f5a2817f8df47cff",
+            },
             ["0.11.0"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.11.0.tar.gz",