chore: use math.Int instead of math.Int and apply linting (#12702)

* linting round

* fix changelog

* revert docs changes

* Update CHANGELOG.md

* revert an accidental change to security.md

* Update simapp/integration/client/grpc/tmservice/service_test.go

Co-authored-by: Julien Robert <julien@rbrt.fr>

x/group/keeper/keeper.go

@@ -277,6 +277,7 @@ func (k Keeper) abortProposals(ctx sdk.Context, groupPolicyAddr sdk.AccAddress)
 		return err
 	}
 
+	//nolint:gosec // "implicit memory aliasing in the for loop (because of the pointer on &proposalInfo)"
 	for _, proposalInfo := range proposals {
 		// Mark all proposals still in the voting phase as aborted.
 		if proposalInfo.Status == group.PROPOSAL_STATUS_SUBMITTED {
@@ -321,6 +322,7 @@ func (k Keeper) pruneVotes(ctx sdk.Context, proposalID uint64) error {
 		return err
 	}
 
+	//nolint:gosec // "implicit memory aliasing in the for loop (because of the pointer on &v)"
 	for _, v := range votes {
 		err = k.voteTable.Delete(ctx.KVStore(k.key), &v)
 		if err != nil {
@@ -375,11 +377,13 @@ func (k Keeper) PruneProposals(ctx sdk.Context) error {
 // TallyProposalsAtVPEnd iterates over all proposals whose voting period
 // has ended, tallies their votes, prunes them, and updates the proposal's
 // `FinalTallyResult` field.
+
 func (k Keeper) TallyProposalsAtVPEnd(ctx sdk.Context) error {
 	proposals, err := k.proposalsByVPEnd(ctx, ctx.BlockTime())
 	if err != nil {
 		return nil
 	}
+	//nolint:gosec // "implicit memory aliasing in the for loop (because of the pointers in the loop)"
 	for _, proposal := range proposals {
 		policyInfo, err := k.getGroupPolicyInfo(ctx, proposal.GroupPolicyAddress)
 		if err != nil {