update travis/pecl

diff --git a/travis/pecl b/travis/pecl
index 3d880c84e94ed6eee885dec36931d67d37232fea..6b7c11b05020541819dbd501dea52d3e2d04aa1e 160000 (submodule)
--- a/travis/pecl
+++ b/travis/pecl
@@ -1 +1 @@
-Subproject commit 3d880c84e94ed6eee885dec36931d67d37232fea
+Subproject commit 6b7c11b05020541819dbd501dea52d3e2d04aa1e