chore :bump new version 2.3.1

[kobayurii]

• Upgrade Indexer Framework to be based on nearcore 2.3.1

[kobayurii]

@race-of-sloths please, include my PR in the Race

[race-of-sloths]

@kobayurii Thank you for your contribution! Your pull request is now a part of the Race of Sloths!
Weekly streak is on the road, smart strategy! Secure your streak with another PR!

Current status: executed

Reviewer	Score
@race-of-sloths	1

Your contribution is much appreciated with a final score of 1!
You have received 11 (10 base + 10% lifetime bonus) Sloth points for this contribution

Congratulations @kobayurii! You have achieved a Silver rank in the Hall of Sloth fame! We add another +{lifetime_reward}% lifetime bonus to all rating points you earn with your next contributions with your total bonus being now 10%!

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[race-of-sloths]

🥁 Score it!

@khorolets, please score the PR with @race-of-sloths score [1/2/3/5/8/13]. The contributor deserves it.
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