Bump @azure/storage-blob from 10.5.0 to 12.1.1

[dependabot-preview]

Bumps @azure/storage-blob from 10.5.0 to 12.1.1.

Release notes

Sourced from @azure/storage-blob's releases.

@azure/storage-blob_12.1.1

12.1.1 (2020.03)

• Bug fix - Blob SAS's sr field is now properly set when generating SAS for a blob using a stored policy with signedpermissions. For more details about Service SAS, please refer to link.
• Fixed unexpected hang issue when uploading empty body. Fixed bug 6904.

@azure/storage-blob_12.1.0

12.1.0 (2020.02)

• Updated Azure Storage Service API version to 2019-07-07.
• Add support for Encryption Scope, which is similar to regular CPK, except the encryption key is provided by name.
• MD5 and CRC headers for Blob Copy: add contentMD5and xMsContentCrc64 to BlobCopyFromURLHeaders and sourceContentMD5 to BlobSyncCopyFromURLOptions.
• Add getPageRangesDiffForManagedDisks to PageBlobClient.
• Fixed a bug where the package didn't work as expected when bundling web applications. [PR #7298](Azure/azure-sdk-for-js#7298)

@azure/storage-blob_12.0.2

12.0.2 (2020.01)

• Bug fix - Name properties on clients now support more kinds of endpoints(IPv4/v6 hosts, single word domains). [PR #6753](Azure/azure-sdk-for-js#6753)

• Service clients now share a single http client instance by default. [PR #6657](Azure/azure-sdk-for-js#6657)

  Previously, a new http client was created for each service client if none was provided by the user. This could result in TCP port exhaustion under heavy usage with the keepAlive option enabled because each http client has its own persistent TCP connection. This change creates a single http client instance which is shared among all service clients by default.

Commits

• 3c94a51 [storage] fix #7745 add polyfill (#7747)
• f56a065 [KeyVault] Defined a release date for 4.1.0-preview.1 (#7750)
• 2afdad1 [KeyVault] README improvements (#7664)
• 00c61a0 [Identity] Update identity changelog (#7749)
• e699e90 [Cosmos] remove package-lock file in cosmos/samples (#7732)
• aa42295 [Cosmos] throw warnings if circular depndencies are present (#7736)
• 82b6da3 Add 1.1 preview 1 to changelog for identity (#7748)
• d9abdcb add missing polyfill: Symbol.iterator (#7745)
• 6daed13 release-for-iotcentral-mgmt (#7705)
• b679003 release-for-compute-mgmt (#7704)
• Additional commits viewable in compare view

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[coveralls]

Pull Request Test Coverage Report for Build 1181

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 68.729%

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Totals
Change from base Build 1135:	0.0%
Covered Lines:	177
Relevant Lines:	240

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💛 - Coveralls

[dependabot-preview]

Superseded by #206.