Promote stan-raspbian to stable (#596)

Author: StanFromIreland

master/custom/builders.py

@@ -172,6 +172,7 @@
 
     # Linux armv7l (32-bit) GCC
     ("ARM Raspbian", "gps-raspbian", SlowNonDebugUnixBuild),
+    ("ARM64 Raspbian", "stan-raspbian", SlowNonDebugUnixBuild),
 
     # FreBSD x86-64 clang
     ("AMD64 FreeBSD", "ware-freebsd", UnixBuild),
@@ -298,8 +299,6 @@
     # FreBSD x86-64 clang
     # FreeBSD 15 is CURRENT: development branch (at 2023-10-17)
     ("AMD64 FreeBSD15", "opsec-fbsd15", UnixBuild),
-
-    ("ARM64 Raspbian", "stan-raspbian", UnixBuild),
 ]