Increase the timeout on dictionary tests to accommodate slower machines.

--- netsurf-3.6/test/hashtable.c
+++ netsurf-3.6/test/hashtable.c
@@ -286,6 +286,7 @@
 	tcase_add_checked_fixture(tc_dict_s,
 				  dicts_hashtable_create,
 				  dict_hashtable_teardown);
+	tcase_set_timeout(tc_dict_s, 30);
 
 	tcase_add_test(tc_dict_s, hashtable_dict_test);
 
@@ -297,6 +298,7 @@
 	tcase_add_checked_fixture(tc_dict_l,
 				  dictl_hashtable_create,
 				  dict_hashtable_teardown);
+	tcase_set_timeout(tc_dict_l, 30);
 
 	tcase_add_test(tc_dict_l, hashtable_dict_test);
 
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<tr><td><span title='2019-06-14 22:09:38 +0200'>2019-06-14</span></td><td><a href='/guix/commit/tests/search-paths.scm?id=92d00ca4661e186022732a47956a2bc0ef16be96'>build: Remove 'gnu/packages/bootstrap' and its binaries.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>