Fix analysis warnings

Author: simolus3

sqlite3/analysis_options.yaml

@@ -1,9 +1,9 @@
 include: package:lints/recommended.yaml
 
 analyzer:
-  strong-mode:
-    implicit-casts: false
-    implicit-dynamic: false
+  language:
+    strict-casts: true
+    strict-raw-types: true
 
 linter:
   rules:

sqlite3/lib/src/wasm/js_interop/file_system_access.dart

@@ -103,7 +103,7 @@ extension FileSystemDirectoryHandleApi on FileSystemDirectoryHandle {
   }
 
   Stream<FileSystemHandle> list() {
-    return AsyncJavaScriptIteratable<List>(this)
+    return AsyncJavaScriptIteratable<List<Object?>>(this)
         .map((data) => data[1] as FileSystemHandle);
   }