fix: exclude arm from x64 config

config_arm.go

@@ -0,0 +1,8 @@
+package avro
+
+import "math"
+
+// Max allocation size for an array due to the limit in number of bits in a heap address:
+// https://github.com/golang/go/blob/7f76c00fc5678fa782708ba8fece63750cb89d03/src/runtime/malloc.go#L190
+// 32-bit systems accept the full 32bit address space
+const maxAllocSize = math.MaxInt

config_x64.go

@@ -1,4 +1,4 @@
-//go:build !386
+//go:build !386 && !arm
 
 package avro