🐛 [RUM] fix view update after its end

[BenoitZugmeyer]

With the last release (v1.11.0), we have seen a lot of "duplicated" views, meaning view events with the same id but a different date. This is likely caused by the throttled updateView function, sending a view update after the view ends when a timing or a event count have changed right before the view end.

This fixes the issue by ensuring that the view sending an update is still the current view.

[codecov-io]

Codecov Report

Merging #373 into master will decrease coverage by 0.30%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #373      +/-   ##
==========================================
- Coverage   87.13%   86.83%   -0.31%     
==========================================
  Files          30       30              
  Lines        1695     1701       +6     
  Branches      344      345       +1     
==========================================
  Hits         1477     1477              
- Misses        218      224       +6     

Impacted Files	Coverage Δ
packages/rum/src/viewCollection.ts	94.73% <100.00%> (+0.61%)	⬆️
packages/rum/src/rum.ts	84.04% <0.00%> (-6.39%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 99dcd70...ba2af7c. Read the comment docs.

[BenoitZugmeyer]

LGTM! thanks. (PR authors can't approve their PR, so let's say it's ✅ )