travis -> gh-actions

[m6w6/ext-json_post] / travis / pecl

diff --git a/travis/pecl b/travis/pecl
deleted file mode 160000 (submodule)
index 4508f56..0000000
--- a/travis/pecl
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 4508f562f8ef3c07b4490bef0e7563e73ef9a5f0