[Snyk] Security upgrade azure-storage-blob from 2.1.0 to 12.13.0

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `pip` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • requirements.txt

⚠️ Warning

``` google-api-core 1.32.0 has requirement google-auth<2.0dev,>=1.25.0, but you have google-auth 2.9.1. djangocms-picture 3.0.0 requires easy-thumbnails, which is not installed. django-polymorphic 3.0.0 has requirement Django>=2.1, but you have Django 1.11.29. django-filer 2.0.2 requires django-mptt, which is not installed. django-filer 2.0.2 requires easy-thumbnails, which is not installed. django-cms 3.8.0 has requirement Django>=2.2, but you have Django 1.11.29. ```

Vulnerabilities that will be fixed

By pinning:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	521/1000 Why? Recently disclosed, Has a fix available, CVSS 4.7	Information Exposure SNYK-PYTHON-AZURESTORAGEBLOB-2949173	azure-storage-blob: 2.1.0 -> 12.13.0	No	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Some vulnerabilities couldn't be fully fixed and so Snyk will still find them when the project is tested again. This may be because the vulnerability existed within more than one direct dependency, but not all of the effected dependencies could be upgraded.

Check the changes in this PR to ensure they won't cause issues with your project.

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[codecov[bot]]

Codecov Report

Merging #123 (ce16027) into master (61a3dd6) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #123   +/-   ##
=======================================
  Coverage   62.61%   62.61%           
=======================================
  Files         132      132           
  Lines        4916     4916           
=======================================
  Hits         3078     3078           
  Misses       1838     1838           

Flag	Coverage Δ
unittests	62.61% <ø> (ø)

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