Update deps and tests for anyref --> externref

* Update to using `wasmparser` 0.55.0
* Update wasmprinter to 0.2.5
* Update `wat` to 1.0.18, and `wast` to 17.0.0

cranelift/wasmtests/nullref.wat

@@ -1,11 +1,11 @@
 (module
-	(func (result nullref)
-		ref.null
+	(func (result externref)
+		(ref.null extern)
 	)
 
-	(func (result nullref)
-		(block (result nullref)
-			ref.null
+	(func (result externref)
+		(block (result externref)
+			(ref.null extern)
 		)
 	)
 )

cranelift/wasmtests/ref-func-0.wat

@@ -1,12 +1,12 @@
 (module
   (func $imported (import "env" "f") (param i32) (result i32))
-  (func $local (result anyref anyref funcref funcref)
+  (func $local (result externref externref funcref funcref)
     global.get 0
     global.get 1
     global.get 2
     global.get 3)
 
-  (global (export "anyref-imported") anyref (ref.func $imported))
-  (global (export "anyref-local") anyref (ref.func $local))
+  (global (export "externref-imported") externref (ref.func $imported))
+  (global (export "externref-local") externref (ref.func $local))
   (global (export "funcref-imported") funcref (ref.func $imported))
   (global (export "funcref-local") funcref (ref.func $local)))

cranelift/wasmtests/select.wat

@@ -5,15 +5,15 @@
   	i32.const 1
   	select)
 
-  (func $typed-select-1 (result anyref)
-  	ref.null
-  	ref.null
+  (func $typed-select-1 (result externref)
+  	ref.null extern
+  	ref.null extern
   	i32.const 1
-  	select (result anyref))
+  	select (result externref))
 
-  (func $typed-select-2 (param anyref) (result anyref)
-    ref.null
+  (func $typed-select-2 (param externref) (result externref)
+    ref.null extern
     local.get 0
     i32.const 1
-    select (result anyref))
+    select (result externref))
 )