dev-python/mastodon-py: fix tests without grapheme

Closes: https://bugs.gentoo.org/980380
Signed-off-by: Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>

dev-python/mastodon-py/mastodon-py-2.2.1.ebuild

@@ -53,5 +53,9 @@ distutils_enable_sphinx docs \
 	dev-python/sphinx-rtd-theme
 
 python_test() {
+	local EPYTEST_IGNORE=()
+	use grapheme ||
+		EPYTEST_IGNORE+=( tests/test_status_length.py )
+
 	epytest -o addopts=
 }