Bump github.com/aws/aws-sdk-go from 1.50.31 to 1.51.11 in /sigv4

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.50.31 to 1.51.11.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Commits](aws/aws-sdk-go@v1.50.31...v1.51.11)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

sigv4/go.mod

@@ -5,7 +5,7 @@ go 1.21
 replace github.com/prometheus/common => ../
 
 require (
-	github.com/aws/aws-sdk-go v1.50.31
+	github.com/aws/aws-sdk-go v1.51.11
 	github.com/prometheus/client_golang v1.19.0
 	github.com/prometheus/common v0.48.0
 	github.com/stretchr/testify v1.9.0

sigv4/go.sum

@@ -1,5 +1,5 @@
-github.com/aws/aws-sdk-go v1.50.31 h1:gx2NRLLEDUmQFC4YUsfMUKkGCwpXVO8ijUecq/nOQGA=
-github.com/aws/aws-sdk-go v1.50.31/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
+github.com/aws/aws-sdk-go v1.51.11 h1:El5VypsMIz7sFwAAj/j06JX9UGs4KAbAIEaZ57bNY4s=
+github.com/aws/aws-sdk-go v1.51.11/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=