mod: bump golang.org/x/image from 0.29.0 to 0.31.0

Bumps [golang.org/x/image](https://github.com/golang/image) from 0.29.0 to 0.31.0.
- [Commits](golang/image@v0.29.0...v0.31.0)

---
updated-dependencies:
- dependency-name: golang.org/x/image
  dependency-version: 0.31.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

go.mod

@@ -1,14 +1,14 @@
 module github.com/flamego/captcha
 
-go 1.24
+go 1.24.0
 
 require (
 	github.com/flamego/flamego v1.9.7
 	github.com/flamego/session v1.6.5
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
 	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.10.0
-	golang.org/x/image v0.29.0
+	golang.org/x/image v0.31.0
 )
 
 require (

go.sum

@@ -51,8 +51,8 @@ github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavM
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
 golang.org/x/exp v0.0.0-20231006140011-7918f672742d h1:jtJma62tbqLibJ5sFQz8bKtEM8rJBtfilJ2qTU199MI=
 golang.org/x/exp v0.0.0-20231006140011-7918f672742d/go.mod h1:ldy0pHrwJyGW56pPQzzkH36rKxoZW1tw7ZJpeKx+hdo=
-golang.org/x/image v0.29.0 h1:HcdsyR4Gsuys/Axh0rDEmlBmB68rW1U9BUdB3UVHsas=
-golang.org/x/image v0.29.0/go.mod h1:RVJROnf3SLK8d26OW91j4FrIHGbsJ8QnbEocVTOWQDA=
+golang.org/x/image v0.31.0 h1:mLChjE2MV6g1S7oqbXC0/UcKijjm5fnJLUYKIYrLESA=
+golang.org/x/image v0.31.0/go.mod h1:R9ec5Lcp96v9FTF+ajwaH3uGxPH4fKfHHAVbUILxghA=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
 golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=