Diego/proto 2657 keep reward emissions from mint

[xmariachi]

Purpose of Changes and their Description

Fix over rewards emissions to cache current block rewards.

Link(s) to Ticket(s) or Issue(s) resolved by this PR

Are these changes tested and documented?

• [ ] If tested, please describe how. If not, why tests are not needed.
• [ ] If documented, please describe where. If not, describe why docs are not needed.
• [ ] Added to Unreleased section of CHANGELOG.md?

Still Left Todo

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The latest Buf updates on your PR. Results from workflow Buf Linter / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	⏩ skipped	Oct 16, 2024, 11:50 AM

[xmariachi]

Merging to the base proto-2657 without reviews