Fix test on 5.2 and ocamlformat dependency (#1353)

* Update ocamlformat dependency in dune-project

* Promote expected change in documentation test

This is due to a change of the List.iter documentation in the standard library.

dune-project

@@ -63,7 +63,7 @@ possible and does not make any assumptions about IO.
   astring
   camlp-streams
   (ppx_expect (and (>= v0.15.0) (< 0.17.0) :with-test))
-  (ocamlformat (and :with-test (= 0.26.1)))
+  (ocamlformat (and :with-test (= 0.26.2)))
   (ocamlc-loc (>= 3.7.0))
   (pp (>= 1.1.2))
   (csexp (>= 1.5))

ocaml-lsp-server/test/e2e-new/documentation.ml

@@ -109,7 +109,7 @@ let%expect_test "Documentation when List module is shadowed" =
   {
     "doc": {
       "kind": "plaintext",
-      "value": "[iter f [a1; ...; an]] applies function [f] in turn to\n   [a1; ...; an]. It is equivalent to\n   [begin f a1; f a2; ...; f an; () end]."
+      "value": "[iter f [a1; ...; an]] applies function [f] in turn to\n   [[a1; ...; an]]. It is equivalent to\n   [f a1; f a2; ...; f an]."
     }
   } |}]
 ;;