chore(deps): Bump cloud.google.com/go/storage

Bumps [cloud.google.com/go/storage](https://github.com/googleapis/google-cloud-go) from 1.56.2 to 1.57.0.
- [Release notes](https://github.com/googleapis/google-cloud-go/releases)
- [Changelog](https://github.com/googleapis/google-cloud-go/blob/main/CHANGES.md)
- [Commits](googleapis/google-cloud-go@storage/v1.56.2...spanner/v1.57.0)

---
updated-dependencies:
- dependency-name: cloud.google.com/go/storage
  dependency-version: 1.57.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

ci/resources/stemcell-version-bump/go.mod

@@ -5,7 +5,7 @@ go 1.24.0
 toolchain go1.24.1
 
 require (
-	cloud.google.com/go/storage v1.56.2
+	cloud.google.com/go/storage v1.57.0
 	github.com/stretchr/testify v1.11.1
 	google.golang.org/api v0.249.0
 )

ci/resources/stemcell-version-bump/go.sum

@@ -16,8 +16,8 @@ cloud.google.com/go/longrunning v0.6.7 h1:IGtfDWHhQCgCjwQjV9iiLnUta9LBCo8R9QmAFs
 cloud.google.com/go/longrunning v0.6.7/go.mod h1:EAFV3IZAKmM56TyiE6VAP3VoTzhZzySwI/YI1s/nRsY=
 cloud.google.com/go/monitoring v1.24.2 h1:5OTsoJ1dXYIiMiuL+sYscLc9BumrL3CarVLL7dd7lHM=
 cloud.google.com/go/monitoring v1.24.2/go.mod h1:x7yzPWcgDRnPEv3sI+jJGBkwl5qINf+6qY4eq0I9B4U=
-cloud.google.com/go/storage v1.56.2 h1:DzxQ4ppJe4OSTtZLtCqscC3knyW919eNl0zLLpojnqo=
-cloud.google.com/go/storage v1.56.2/go.mod h1:C9xuCZgFl3buo2HZU/1FncgvvOgTAs/rnh4gF4lMg0s=
+cloud.google.com/go/storage v1.57.0 h1:4g7NB7Ta7KetVbOMpCqy89C+Vg5VE8scqlSHUPm7Rds=
+cloud.google.com/go/storage v1.57.0/go.mod h1:329cwlpzALLgJuu8beyJ/uvQznDHpa2U5lGjWednkzg=
 cloud.google.com/go/trace v1.11.6 h1:2O2zjPzqPYAHrn3OKl029qlqG6W8ZdYaOWRyr8NgMT4=
 cloud.google.com/go/trace v1.11.6/go.mod h1:GA855OeDEBiBMzcckLPE2kDunIpC72N+Pq8WFieFjnI=
 github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.29.0 h1:UQUsRi8WTzhZntp5313l+CHIAT95ojUI2lpP/ExlZa4=