Support .NET 7

Merge pull request #11 from cnblogs/add-pack-script

Add pack.sh

0.3.5: Merge pull request #9 from cnblogs/remove-checking-OssCredential

Remove checking OssCredential options

0.3.4: Merge pull request #8 from cnblogs/check-file-path

Throw ArgumentException if file path starts with slash

0.3.3: Merge pull request #7 from cnblogs/upgrade-to-.netcore2.2

Upgrade to .net core 2.2

Merge pull request #6 from cnblogs/v0.3.2

Refacotry BucketInfo.CreateByRegion