rebar_dialyzer_format: Fix typo race_conditions

The value was deleted is OTP-25 but it was supposed to be
`race_conditions` and not `race_condition`

apps/rebar/src/rebar_dialyzer_format.erl

@@ -260,7 +260,9 @@ message_to_string({opaque_call, [M, F, Args, Culprit, OpaqueType]}) ->
     fmt("~!^The call ~!!~ts:~ts~ts~!^ breaks the opaqueness of the term~!!"
         " ~ts :: ~ts", [M, F, Args, Culprit, OpaqueType]);
 %%----- Warnings for concurrency errors --------------------
-message_to_string({race_condition, [M, F, Args, Reason]}) ->
+% race_conditions was deleted in OTP-25
+% https://github.com/erlang/otp/pull/5502
+message_to_string({race_conditions, [M, F, Args, Reason]}) ->
     fmt("~!^The call ~!!~w:~w~ts ~ts", [M, F, Args, Reason]);
 %%----- Warnings for behaviour errors --------------------
 message_to_string({callback_type_mismatch, [B, F, A, ST, CT]}) ->