Update BzlCompileValue.Key to use @AutoCodec.Interner instead of …

…`@AutoCodec.Instantiator`.

PiperOrigin-RevId: 598911862
Change-Id: I7eeac51278eeebdc3ce533466b9869c0aa980e31

src/main/java/com/google/devtools/build/lib/skyframe/BzlCompileValue.java

@@ -176,12 +176,16 @@ private Key(Root root, Label label, Kind kind) {
       }
     }
 
-    @VisibleForSerialization
-    @AutoCodec.Instantiator
-    static Key create(Root root, Label label, Kind kind) {
+    private static Key create(Root root, Label label, Kind kind) {
       return interner.intern(new Key(root, label, kind));
     }
 
+    @VisibleForSerialization
+    @AutoCodec.Interner
+    static Key intern(Key key) {
+      return interner.intern(key);
+    }
+
     /** Returns whether this key is for a {@code @_builtins} .bzl file. */
     public boolean isBuiltins() {
       return kind == Kind.BUILTINS;