[experiment] add alternative wasm sqlite3 implementation available via build-tag (#2863)

This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).

vendor/github.com/ncruces/go-sqlite3/json.go

@@ -0,0 +1,11 @@
+package sqlite3
+
+import "github.com/ncruces/go-sqlite3/internal/util"
+
+// JSON returns a value that can be used as an argument to
+// [database/sql.DB.Exec], [database/sql.Row.Scan] and similar methods to
+// store value as JSON, or decode JSON into value.
+// JSON should NOT be used with [BindJSON] or [ResultJSON].
+func JSON(value any) any {
+	return util.JSON{Value: value}
+}