Bump github.com/emmansun/gmsm from 0.27.3 to 0.27.4

Bumps [github.com/emmansun/gmsm](https://github.com/emmansun/gmsm) from 0.27.3 to 0.27.4.
- [Release notes](https://github.com/emmansun/gmsm/releases)
- [Commits](emmansun/gmsm@v0.27.3...v0.27.4)

---
updated-dependencies:
- dependency-name: github.com/emmansun/gmsm
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -2,7 +2,7 @@ module github.com/emmansun/sm2rsign
 
 go 1.18
 
-require github.com/emmansun/gmsm v0.27.3
+require github.com/emmansun/gmsm v0.27.4
 
 require (
 	golang.org/x/crypto v0.24.0 // indirect

go.sum

@@ -1,5 +1,5 @@
-github.com/emmansun/gmsm v0.27.3 h1:qR5SmFjSm4Mkp9r+cva9B96LlSXjjAwqit8zL1gAfmQ=
-github.com/emmansun/gmsm v0.27.3/go.mod h1:zE4MdgGF+RwOxMXnT7UQ0UWhAGL56aAlWwQbHC/VAz8=
+github.com/emmansun/gmsm v0.27.4 h1:5YXb7knPi0Vi23MPJRTATVjNdwfBqgRvHRY1AJKh7Gg=
+github.com/emmansun/gmsm v0.27.4/go.mod h1:zE4MdgGF+RwOxMXnT7UQ0UWhAGL56aAlWwQbHC/VAz8=
 golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
 golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
 golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=