Fix test build

Some PRs have fallen out of sync with the changes in signatures, so we
need to take a few extra parameters into account.

tests/cherrypick/workdir.c

@@ -118,7 +118,7 @@ void test_cherrypick_workdir__empty_result(void)
 	cl_assert(git_path_exists(TEST_REPO_PATH "/file4.txt"));
 
 	cl_git_pass(git_commit_lookup(&head, repo, &head_oid));
-	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL));
+	cl_git_pass(git_reset(repo, (git_object *)head, GIT_RESET_HARD, NULL, NULL, NULL));
 
 	git_oid_fromstr(&cherry_oid, cherrypick_oid);
 	cl_git_pass(git_commit_lookup(&commit, repo, &cherry_oid));

tests/network/fetchlocal.c

@@ -140,7 +140,7 @@ void test_network_fetchlocal__multi_remotes(void)
 	cl_git_pass(git_remote_set_url(test, cl_git_fixture_url("testrepo.git")));
 	git_remote_set_callbacks(test, &callbacks);
 	cl_git_pass(git_remote_connect(test, GIT_DIRECTION_FETCH));
-	cl_git_pass(git_remote_download(test));
+	cl_git_pass(git_remote_download(test, NULL));
 	cl_git_pass(git_remote_update_tips(test, NULL, NULL));
 
 	cl_git_pass(git_reference_list(&refnames, repo));
@@ -150,7 +150,7 @@ void test_network_fetchlocal__multi_remotes(void)
 	cl_git_pass(git_remote_set_url(test2, cl_git_fixture_url("testrepo.git")));
 	git_remote_set_callbacks(test2, &callbacks);
 	cl_git_pass(git_remote_connect(test2, GIT_DIRECTION_FETCH));
-	cl_git_pass(git_remote_download(test2));
+	cl_git_pass(git_remote_download(test2, NULL));
 	cl_git_pass(git_remote_update_tips(test2, NULL, NULL));
 
 	cl_git_pass(git_reference_list(&refnames, repo));