Update cloud provider SDKs (AWS, GCP, Aliyun)

[wendellmva]

Summary

Update cloud storage provider SDKs to latest versions compatible with .NET 9.

Package Updates

AWS (BaGet.Aws)

Package	Current	Target
AWSSDK.S3	3.3.110.20	3.7.305.0
AWSSDK.SecurityToken	3.3.104.27	3.7.300.0

GCP (BaGet.Gcp)

Package	Current	Target
Google.Cloud.Storage.V1	2.2.1	4.10.0

Aliyun (BaGet.Aliyun)

Package	Current	Target
Aliyun.OSS.SDK.NetCore	2.9.1	2.14.1

Tasks

• Update AWS SDK packages in src/BaGet.Aws/BaGet.Aws.csproj
• Update GCP packages in src/BaGet.Gcp/BaGet.Gcp.csproj
• Update Aliyun packages in src/BaGet.Aliyun/BaGet.Aliyun.csproj
• Fix any breaking changes in AWS implementation
• Fix any breaking changes in GCP implementation (major version bump)
• Test cloud storage providers

Dependencies

• Depends on .NET 9 upgrade