chore: add link to MaxTxSize in ante handler v3 #9378

Job	Run time
docker-security-build / prepare-env	2s
docker-txsim-build / prepare-env	9s
docker-security-build / logic-check	1s
docker-txsim-build / logic-check	1s
docker-security-build / docker-security	2m 18s
docker-txsim-build / docker-security	1m 48s
docker-txsim-build / docker-build (DockerHub; docker.io/celestiaorg/txsim)	7s
docker-txsim-build / docker-build (GHCR; ghcr.io/celestiaorg/txsim)	2m 0s
docker-txsim-build / docker-build (ScaleWay; rg.fr-par.scw.cloud/celestiaorg/txsim)	7s
docker-security-build / docker-build (DockerHub; docker.io/celestiaorg/celestia-app)	9s
docker-security-build / docker-build (GHCR; ghcr.io/celestiaorg/celestia-app)	2m 30s
docker-security-build / docker-build (ScaleWay; rg.fr-par.scw.cloud/celestiaorg/celestia-app)	7s
	9m 19s

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