New v5 release with SDK v0.46.12

[crodriguezvega]

Tag v5.3.0 with:

• Go 1.19.
• Cosmos SDK v0.46.12.
• CometBFT v0.34.27.

And retract previous v5 versions since Go 1.18 is not supported anymore.

[colin-axner]

To complete this issue:

• create release/v5.3.x branch (branch off of release/v5.2.x
• create/merge pr into release/v5.3.x which bumps go, sdk, cometbft versions + retract statements in the go.mod
• run compatability tests (might need to add a new directory for this release line)
• post tag, remove unsupported v5.x release lines

[crodriguezvega]

Closed by https://github.com/cosmos/ibc-go/releases/tag/v5.3.0.