Improve slack notification for public studios cron job

[Dinika]

According to this solution to the issue on the github repo of the plugin we use for slack-github notificate, the blocks sub field can be ignored if the SLACK_WEBHOOK_TYPE environment variable is not set.
In this PR I also (try to) enable the uploading of recorded cypress video to the cypress cloud.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added necessary unit and integration tests.
• I have added screenshots (if applicable), in the comment section.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (b2672eb) 48.05% compared to head (22ca26d) 48.00%.
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1441      +/-   ##
===========================================
- Coverage    48.05%   48.00%   -0.05%     
===========================================
  Files          249      249              
  Lines        11365    11365              
  Branches      2655     2655              
===========================================
- Hits          5461     5456       -5     
- Misses        5870     5876       +6     
+ Partials        34       33       -1     

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