update travis-pecl

diff --git a/travis/pecl b/travis/pecl
index 6b7c11b05020541819dbd501dea52d3e2d04aa1e..2d7406d5c003e208d14a6a755e0971e009e57d00 160000 (submodule)
--- a/travis/pecl
+++ b/travis/pecl
@@ -1 +1 @@
-Subproject commit 6b7c11b05020541819dbd501dea52d3e2d04aa1e
+Subproject commit 2d7406d5c003e208d14a6a755e0971e009e57d00