feat(schema-tools): fix cljs macro

[aplumez]

Description

Fix the following warning in Clojurescript:

------ WARNING #1 - :undeclared-var --------------------------------------------
 Resource: martian/schema_tools.cljc:207:10
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 204 |     (let [target (:derefable schema)]
 205 |       (concat*
 206 |         (when include-self? (list path))
 207 |         (with-recursion-guard
----------------^---------------------------------------------------------------
 Use of undeclared Var martian.schema-tools/with-recursion-guard
--------------------------------------------------------------------------------
 208 |           target
 209 |           (let [inner-schema @target]
 210 |             (concat
 211 |               (-paths inner-schema (conj path :derefable) true)
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