chore(deps): bump Azure.Storage.Blobs from 12.4.4 to 12.6.0 in /src/backend/joseki.be

[dependabot[bot]]

Bumps Azure.Storage.Blobs from 12.4.4 to 12.6.0.

Release notes

Sourced from Azure.Storage.Blobs's releases.

Azure.Storage.Blobs_12.6.0

12.6.0 (2020-08-31)

• Fixed bug where BlobClient.Upload(), BlockBlobClient.Upload(), AppendBlobClient.AppendBlock(), and PageBlobClient.UploadPages() would deadlock if the content stream's position was not 0.
• Fixed bug in BlobBaseClient.OpenRead() causing us to do more download called than necessary.
• Fixed bug where PageBlobWriteStream would advance Position 2x the number of written bytes.

Azure.Storage.Blobs_12.5.1

12.5.1 (2020-08-18)

• Bug in TaskExtensions.EnsureCompleted method that causes it to unconditionally throw an exception in the environments with synchronization context

Azure.Storage.Blobs_12.5.0

12.5.0 (2020-08-13)

• Added support for custom local emulator hostname for blob storage endpoints.
• Fixed bug where BlobContainerClient.SetAccessPolicy() sends DateTimeOffset.MinValue when StartsOn and ExpiresOn when not set in BlobAccessPolicy
• Added nullable properties, PolicyStartsOn and PolicyExpiresOn to BlobAccessPolicy
• Added BlockBlobClient.OpenWrite(), AppendBlobClient.OpenWrite(), and PageBlobClient.OpenWrite()

Commits

• 49e6a8c Preparing for Storage release (#14721)
• b6d985a Update code owners for ADT (#14722)
• af35cad Feature/storage/open write page blob bug (#14716)
• 7947737 redame content and some additional samples (#14713)
• 70b00f7 Adding SNI support to ClientCertificateCredential (#14636)
• 398ab3c Feature/storage/stream position deadlock bug (#14301)
• c9ea66c Add service version and remove public ctors for output only types (#14690)
• a59c79a move test to individual classes (#14684)
• b85d0c6 Restructure Changelog Logic (#13783)
• 902a8d8 Add SubQueue option and remove locktoken overloads (#14692)
• Additional commits viewable in compare view

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[dependabot[bot]]

OK, I won't notify you again about this release, but will get in touch when a new version is available.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.