chore: update tarantool-sys to 2.11.5

This patch migrates tarantool-sys from a patched 2.11.2 to a patched 2.11.5.
Here's some stats:

```
$ git log --oneline 2.11.2..2.11.5 | wc -l
308
$ git log --oneline 2.11.2..2.11.2-picodata | wc -l
173
$ git log --oneline 2.11.5..2.11.5-picodata | wc -l
155
```

The difference in the number of patches (155 vs 173) is due to:
* Squashes and cleanups (e.g. the notorious `Part of #37`).
* Already applied upstream patches.

It's not a vanilla 2.11.5, though. The branch also includes a handful
of upstream vinyl fixes which haven't been released yet:

```
$ git log --oneline 2.11.5..release/2.11 | rg -i vinyl
abbfac3181 vinyl: disable tautological DELETE optimization for deferred DELETEs
980bcdd1d3 vinyl: move cache invalidation from vy_tx_write to vy_lsm_set
bfab99a10f vinyl: do not invalidate cache on commit after prepare
03b982e977 vinyl: fix cache invalidation on rollback of DELETE statement
878f3c04ac vinyl: fix handling of duplicate multikey entries in transaction write set
6f63cd1e0c vinyl: skip invisible read sources
edf02d65d1 vinyl: fix handling of overwritten statements in transaction write set
```

Branch: https://git.picodata.io/core/tarantool/-/commits/2.11.5-picodata