feat(uptime): Add enable/disable project subscription methods

[evanpurkhiser]

We'll use these methods when enabling / disabling a uptime monitor for
seat quota reasons

[codecov]

Codecov Report

Attention: Patch coverage is 96.49123% with 2 lines in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/sentry/uptime/subscriptions/subscriptions.py	88.88%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #83893      +/-   ##
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- Coverage   87.63%   87.63%   -0.01%     
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  Files        9522     9522              
  Lines      542196   542253      +57     
  Branches    21228    21228              
==========================================
+ Hits       475177   475218      +41     
- Misses      66653    66669      +16     
  Partials      366      366              

[wedamija]

This makes sense to me. We'll need a filter in the result consumer to ignore results for projects with disabled status, for the cases where the uptime subscription is shared

[evanpurkhiser]

Here's the follow up for that #83950