[vala/staging] tests: Fix make dist

[Rico Tzschichholz <ricotz src gnome org>]

commit a55e918c9c46d4558673382d85510ddfffef4273
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Tue Apr 21 14:27:13 2020 +0200

    tests: Fix make dist

 tests/Makefile.am | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 3476db7b1..2f3906f38 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1042,6 +1042,8 @@ EXTRA_DIST = \
        $(TESTS) \
        $(NON_NULL_TESTS) \
        $(LINUX_TESTS) \
+       $(POSIX_TESTS) \
+       $(VERSION_CHECK_TESTS) \
        $(GENIE_TESTS) \
        $(NULL)