fix(module): prevent parameter expansion when generating pipeline config

lib/flakeModule.nix

@@ -166,7 +166,7 @@
         #  respectively)
         toYaml = name: value:
           pkgs.runCommand name {} ''
-            cat <<EOT >> $out
+            cat <<'EOT' > $out
             ${builtins.toJSON value}
             EOT
           '';