Update Python SDK Version to 1.13.0b1

[gavin-aguiar]

Description

Fixes #

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PR information

• The title of the PR is clear and informative.
• There are a small number of commits, each of which has an informative message. This means that previously merged commits do not appear in the history of the PR. For information on cleaning up the commits in your pull request, see this page.
• If applicable, the PR references the bug/issue that it fixes in the description.
• New Unit tests were added for the changes made and CI is passing.

Quality of Code and Contribution Guidelines

• I have read the contribution guidelines.

[codecov]

Codecov Report

Merging #1126 (eb1634b) into dev (65d1bc6) will decrease coverage by 0.10%.
The diff coverage is n/a.

❗ Current head eb1634b differs from pull request most recent head 41f7ce8. Consider uploading reports for the commit 41f7ce8 to get more accurate results

@@            Coverage Diff             @@
##              dev    #1126      +/-   ##
==========================================
- Coverage   85.12%   85.01%   -0.11%     
==========================================
  Files          33       33              
  Lines        1849     1849              
  Branches      275      275              
==========================================
- Hits         1574     1572       -2     
- Misses        205      206       +1     
- Partials       70       71       +1     

Flag	Coverage Δ
unittests	84.96% <ø> (-0.17%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
azure_functions_worker/dispatcher.py	88.15% <0.00%> (-1.06%)	⬇️
azure_functions_worker/logging.py	47.16% <0.00%> (+3.77%)	⬆️

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