Add projects with status checks to ping
What does this MR do and why?
- Adds a total count of projects that contain an external status check to the service ping.
## Database review
Aggregate (cost=4.79..4.80 rows=1 width=8) (actual time=0.137..0.138 rows=1 loops=1)
Buffers: shared hit=10
I/O Timings: read=0.000 write=0.000
-> Index Only Scan using idx_on_external_status_checks_project_id_external_url on public.external_status_checks (cost=0.14..4.55 rows=94 width=8) (actual time=0.015..0.026 rows=94 loops=1)
Heap Fetches: 0
Buffers: shared hit=2
I/O Timings: read=0.000 write=0.000
Time: 0.341 ms
- planning: 0.117 ms
- execution: 0.224 ms
- I/O read: 0.000 ms
- I/O write: 0.000 ms
Shared buffers:
- hits: 10 (~80.00 KiB) from the buffer pool
- reads: 0 from the OS file cache, including disk I/O
- dirtied: 0
- writes: 0
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.
Related to #334967 (closed)