build(deps): bump go.elastic.co/fastjson from 1.3.0 to 1.4.0

Bumps [go.elastic.co/fastjson](https://github.com/elastic/go-fastjson) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/elastic/go-fastjson/releases)
- [Commits](elastic/go-fastjson@v1.3.0...v1.4.0)

---
updated-dependencies:
- dependency-name: go.elastic.co/fastjson
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/stretchr/testify v1.9.0
 	github.com/xeipuuv/gojsonschema v1.2.0
 	go.elastic.co/apm/v2 v2.6.0
-	go.elastic.co/fastjson v1.3.0
+	go.elastic.co/fastjson v1.4.0
 	go.opentelemetry.io/collector/consumer v0.107.0
 	go.opentelemetry.io/collector/pdata v1.13.0
 	go.opentelemetry.io/collector/semconv v0.107.0

go.sum

@@ -77,8 +77,8 @@ github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 go.elastic.co/apm/v2 v2.6.0 h1:VieBMLQFtXua2YxpYxaSdYGnmmxhLT46gosI5yErJgY=
 go.elastic.co/apm/v2 v2.6.0/go.mod h1:33rOXgtHwbgZcDgi6I/GtCSMZQqgxkHC0IQT3gudKvo=
-go.elastic.co/fastjson v1.3.0 h1:hJO3OsYIhiqiT4Fgu0ZxAECnKASbwgiS+LMW5oCopKs=
-go.elastic.co/fastjson v1.3.0/go.mod h1:K9vDh7O0ODsVKV2B5e2XYLY277QZaCbB3tS1SnARvko=
+go.elastic.co/fastjson v1.4.0 h1:a4BXUKXZHAzjVOPrqtEx2FDsIRBCMek01vCnrtyutWs=
+go.elastic.co/fastjson v1.4.0/go.mod h1:ZD5um63l0/8TIdddZbL2znD83FAr2IckYa3KR7VcdNA=
 go.opentelemetry.io/collector/consumer v0.107.0 h1:fF/+xyv9BfXQUvuJqkljrpzKyBQExDQt6zB5rzGyuHs=
 go.opentelemetry.io/collector/consumer v0.107.0/go.mod h1:wgWpFes9sbnZ11XeJPSeutU8GJx6dT/gzSUqHpaZZQA=
 go.opentelemetry.io/collector/pdata v1.13.0 h1:eV3NQt2f1UcaibkziMvGTQI34LlpiYBUGp1yP0G/Cxw=