Update conpty to 1.25 (#301398)

* Update conpty to 1.25

* see if changes fix 1.2.0-beta11 defering conptyNative.connect()

* Revert "see if changes fix 1.2.0-beta11 defering conptyNative.connect()"

This reverts commit c5d9064efaeb53b7adfa2270e964b7726b229e42.

* Reapply "see if changes fix 1.2.0-beta11 defering conptyNative.connect()"

This reverts commit ded49adb1462236bfafa8bfc18f23abe0e475f5c.