fix(ansible): improve regex pattern to avoid false matches (#1535)

Author: AlePini

lua/astrocommunity/pack/ansible/init.lua

@@ -8,7 +8,7 @@ local function yaml_ft(path, bufnr)
   if path_regex and path_regex:match_str(path) then return "yaml.ansible" end
 
   -- check for known ansible playbook text and if found, return yaml.ansible
-  local regex = vim.regex "hosts:\\|tasks:"
+  local regex = vim.regex "^(hosts\\|tasks):"
   if regex and regex:match_str(content) then return "yaml.ansible" end
 
   -- return yaml if nothing else