Update dependency com_github_dgraph_io_ristretto to v0.0.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
com_github_dgraph_io_ristretto	go_repository	patch	v0.0.0 -> v0.0.3

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Release Notes

dgraph-io/ristretto

v0.0.3

Compare Source

Changed

Added

Fixed

• z: use MemHashString and xxhash.Sum64String ([#​153][])
• Check conflict key before updating expiration map. ([#​154][])
• Fix race condition in Cache.Clear ([#​133][])
• Improve handling of updated items ([#​168][])
• Fix droppedSets count while updating the item ([#​171][])

v0.0.2

Compare Source

Added

• Sets with TTL. (#​122)

Fixed

• Fix the way metrics are handled for deletions. (#​111)
• Support nil *Cache values in Clear and Close. (#​119)
• Delete item immediately. (#​113)
• Remove key from policy after TTL eviction. (#​130)

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