chore: backport #2107, #2108 and #2109 (#2112)

* Revert "fix(vald): broadcast empty vote for failed txs (#2100)" (#2107)

This reverts commit 289f96a.

* fix(vald): panic when confirming gateway txs and tx is not finalized (#2108)

* fix(vald): panic when confirming gateway txs and tx is not finalized

* fix log

* fix(vald): vote empty when the tx has failed (#2109)

* fix(vald): vote empty when the tx has failed

* improve test

go.mod

@@ -37,7 +37,7 @@ require (
 	github.com/tendermint/tm-db v0.6.8-0.20220506192307-f628bb5dc95b
 	golang.org/x/crypto v0.18.0
 	golang.org/x/exp v0.0.0-20230713183714-613f0c0eb8a1
-	golang.org/x/mod v0.15.0
+	golang.org/x/mod v0.14.0
 	golang.org/x/sync v0.6.0
 	golang.org/x/text v0.14.0
 	golang.org/x/tools v0.17.0