feat(integrations): Update and add some metrics

[ykamo001]

Update some metrics, and add new ones

Resolves: https://github.com/getsentry/sentry/issues/64844#issue-2124147817

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 88.88889% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 79.70%. Comparing base (5bb3bea) to head (77023c8). Report is 3 commits behind head on master.

:exclamation: Current head 77023c8 differs from pull request most recent head ff6cf9d. Consider uploading reports for the commit ff6cf9d to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #69277 +/- ## =========================================== + Coverage 58.23% 79.70% +21.46% =========================================== Files 6421 6430 +9 Lines 285564 285951 +387 Branches 49240 49293 +53 =========================================== + Hits 166289 227903 +61614 + Misses 118833 57611 -61222 + Partials 442 437 -5 ``` | [Files](https://app.codecov.io/gh/getsentry/sentry/pull/69277?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry) | Coverage Δ | | |---|---|---| | [...ions/slack/tasks/send\_notifications\_on\_activity.py](https://app.codecov.io/gh/getsentry/sentry/pull/69277?src=pr&el=tree&filepath=src%2Fsentry%2Fintegrations%2Fslack%2Ftasks%2Fsend_notifications_on_activity.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry#diff-c3JjL3NlbnRyeS9pbnRlZ3JhdGlvbnMvc2xhY2svdGFza3Mvc2VuZF9ub3RpZmljYXRpb25zX29uX2FjdGl2aXR5LnB5) | `93.47% <100.00%> (+53.00%)` | :arrow_up: | | [src/sentry/integrations/discord/client.py](https://app.codecov.io/gh/getsentry/sentry/pull/69277?src=pr&el=tree&filepath=src%2Fsentry%2Fintegrations%2Fdiscord%2Fclient.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry#diff-c3JjL3NlbnRyeS9pbnRlZ3JhdGlvbnMvZGlzY29yZC9jbGllbnQucHk=) | `96.90% <80.00%> (+50.09%)` | :arrow_up: | ... and [1907 files with indirect coverage changes](https://app.codecov.io/gh/getsentry/sentry/pull/69277/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=getsentry)