dev-python/botocore: Kill unstable test in 1.15.48 too

Closes: https://bugs.gentoo.org/727090
Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/botocore/botocore-1.15.48.ebuild

@@ -43,6 +43,13 @@ DEPEND="
 
 PATCHES=( "${FILESDIR}/1.8.6-tests-pass-all-env-vars-to-cmd-runner.patch" )
 
+src_prepare() {
+	# very unstable
+	sed -i -e 's:test_stress_test_token_bucket:_&:' \
+		tests/functional/retries/test_bucket.py || die
+	distutils-r1_src_prepare
+}
+
 python_compile_all() {
 	use doc && emake -C docs html
 }