feat(nvim): add snippet to create a Pest test

lua/opdavies/snippets/ft/php.lua

@@ -73,6 +73,8 @@ local M = {
     { c(1, { t "public", t "protected", t "private" }), i(2), i(3), i(4), i(5), i(0) }
   ),
 
+  pest = fmta("<>('<>', function() {\n  <>\n});", { c(1, { t "it", t "test" }), i(2), i(0) }),
+
   test = fmta(
     [[
     /** @test */