update travis/pecl

diff --git a/travis/pecl b/travis/pecl
index cebb9675e8d36318a928cfa48402fcc434cc7b5d..6b7c11b05020541819dbd501dea52d3e2d04aa1e 160000 (submodule)
--- a/travis/pecl
+++ b/travis/pecl
@@ -1 +1 @@
-Subproject commit cebb9675e8d36318a928cfa48402fcc434cc7b5d
+Subproject commit 6b7c11b05020541819dbd501dea52d3e2d04aa1e