Add new test data folder to Makefile's list

Author: hukkin

Makefile.pre.in

@@ -2741,6 +2741,7 @@ TESTSUBDIRS=	idlelib/idle_test \
 		test/test_tomllib/data/valid \
 		test/test_tomllib/data/valid/array \
 		test/test_tomllib/data/valid/dates-and-times \
+		test/test_tomllib/data/valid/inline-table \
 		test/test_tomllib/data/valid/multiline-basic-str \
 		test/test_tools \
 		test/test_tools/i18n_data \