Release v1.2.7

What's Changed

• chore: update testnet chainspec and reduce fees by @1xstj in #877
• feat: add rpc to query user rewards by @1xstj in #878
• reduce inflation rewards by 50% by @1xstj in #880
• feat: More E2E Tests by @shekohex in #872
• fix: operator input in the MAD precompile delegate call by @shekohex in #882
• fix: add set last pool id and assets migration by @1xstj in #879
• feat: LRT E2E Testing by @shekohex in #885
• chore: checked sub and add for all remaining pallet ops by @drewstone in #889
• fix: prerelease CI by @shekohex in #893
• Code cleanup v2 by @1xstj in #895
• fix: update rewards payout formula by @1xstj in #896
• fix: add extrinsics to set Apy and genesis configs for rewards pallet by @1xstj in #900
• feat: add claim_rewards_other extrinsic by @1xstj in #901
• fix: update lrt_rewards e2e test by @1xstj in #902
• Fix the Batch precompile configuration by @shekohex in #899
• Release v1.2.7 by @1xstj in #904

Full Changelog: v1.2.5...v1.2.7