fix(ristretto): update dependency on ristretto

[joshua-goldstein]

Problem

Dgraph currently uses Ristretto v0.1.0. There are a few bug fixes and updates that have gone into the Ristretto master branch that are not in v0.1.0. However, we would prefer to be cautious and not pull in the latest version of Ristretto as significant refactoring took place. This PR introduces a new version of Ristretto which we tentatively call v0.1.1. Currently the go.mod uses a commit SHA which is messy, but once we are sure about the stability of this update we will make will make a tag on Ristretto and set the dependency on that.

We include in this PR:

• Joshua/fix .go version ristretto#299
• update x/sys dependency to fix darwin build ristretto#297
• go lang version pin and modules update ristretto#296 (partially, not all dependencies)
• fix runtime error: index out of range for !amd64 env ristretto#287
• readme: include SpiceDB usage ristretto#285
• Remove mmapSize check, it has wrong value on ARM64 ristretto#281

Solution

Update dependency on Ristretto to a stable v0.1.1.

Remark

See new PR #8365

[coveralls]

Coverage remained the same at 37.099% when pulling 5d89b20 on joshua/update-ristretto into 9b67017 on main.

[meghalims]

Hi Josh,
As we discussed, we will take it in post 22.0.0 after we make a formal release of ristretto

[skrdgraph]

@joshua-goldstein based on @meghalims's comment I am guessing we are going to punt on this one. If that is the case do you mind changing this to a draft?