Bump cosmossdk.io/math from 1.3.0 to 1.4.0 in /tests/system (#2038)

Bumps [cosmossdk.io/math](https://github.com/cosmos/cosmos-sdk) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/cosmos/cosmos-sdk/releases)
- [Changelog](https://github.com/cosmos/cosmos-sdk/blob/main/CHANGELOG.md)
- [Commits](cosmos/cosmos-sdk@log/v1.3.0...log/v1.4.0)

---
updated-dependencies:
- dependency-name: cosmossdk.io/math
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

tests/system/go.mod

@@ -24,7 +24,7 @@ require (
 )
 
 require (
-	cosmossdk.io/math v1.3.0
+	cosmossdk.io/math v1.4.0
 	github.com/cometbft/cometbft v0.38.15
 	github.com/tidwall/gjson v1.14.2
 	github.com/tidwall/sjson v1.2.5

tests/system/go.sum

@@ -12,8 +12,8 @@ cosmossdk.io/errors v1.0.1 h1:bzu+Kcr0kS/1DuPBtUFdWjzLqyUuCiyHjyJB6srBV/0=
 cosmossdk.io/errors v1.0.1/go.mod h1:MeelVSZThMi4bEakzhhhE/CKqVv3nOJDA25bIqRDu/U=
 cosmossdk.io/log v1.4.1 h1:wKdjfDRbDyZRuWa8M+9nuvpVYxrEOwbD/CA8hvhU8QM=
 cosmossdk.io/log v1.4.1/go.mod h1:k08v0Pyq+gCP6phvdI6RCGhLf/r425UT6Rk/m+o74rU=
-cosmossdk.io/math v1.3.0 h1:RC+jryuKeytIiictDslBP9i1fhkVm6ZDmZEoNP316zE=
-cosmossdk.io/math v1.3.0/go.mod h1:vnRTxewy+M7BtXBNFybkuhSH4WfedVAAnERHgVFhp3k=
+cosmossdk.io/math v1.4.0 h1:XbgExXFnXmF/CccPPEto40gOO7FpWu9yWNAZPN3nkNQ=
+cosmossdk.io/math v1.4.0/go.mod h1:O5PkD4apz2jZs4zqFdTr16e1dcaQCc5z6lkEnrrppuk=
 cosmossdk.io/store v1.1.1 h1:NA3PioJtWDVU7cHHeyvdva5J/ggyLDkyH0hGHl2804Y=
 cosmossdk.io/store v1.1.1/go.mod h1:8DwVTz83/2PSI366FERGbWSH7hL6sB7HbYp8bqksNwM=
 cosmossdk.io/x/tx v0.13.5 h1:FdnU+MdmFWn1pTsbfU0OCf2u6mJ8cqc1H4OMG418MLw=