Updates strider-simple-runner to ~0.11.3

As discussed in #357, @niallo discovered the solution to a crash in `dirkeeper` and updated `strider-simple-runner` to fix it.

After encountering the issue once again, I noticed that `strider` 38b95fb3584dc27afc09f3fe59698bdde128b631 has not yet updated this dependency.

After updating `strider-simple-runner` to `~0.11.3`, the crash was again resolved. Any reason not to bump this in **master**?