bump reedline to test ExecuteHostCommand changes (#11993)

# Description

This PR bumps reedline to the latest main which has the
`executehostcommand` changes
https://github.com/nushell/reedline/pull/758 which essentially allows
reedline/nushell to call `executehostcommand` in key bindings and
rewrite the commandline buffer without inserting a newline.

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Cargo.lock

@@ -4690,7 +4690,7 @@ dependencies = [
 [[package]]
 name = "reedline"
 version = "0.29.0"
-source = "git+https://github.com/nushell/reedline?branch=main#c7c17442e09da6419ab174611070de37ec76d006"
+source = "git+https://github.com/nushell/reedline?branch=main#4fd129588a7373acd3e154fb55a5b572948f7df7"
 dependencies = [
  "arboard",
  "chrono",