✨ Allow update service version with start view

[amortemousque]

Motivation

In the context of sub-apps, web and mobile developers want to only see RUM events happening in their area of ownership. For example, a developer working on the Log Management product at Datadog wants to see RUM events that happened in the Log Management only. To do so we will make the service attribute first-class-citizen in RUM and allow customers to update the current service and version.

This PR allow the user to update the service and the version during the lifespan of a session with the startView API

Changes

Update startView API
Remove service and version tags

Testing

• Local
• Staging
• Unit
• End to end

---

I have gone over the contributing documentation.

[codecov-commenter]

Codecov Report

Merging #1448 (493feb7) into main (68161f5) will increase coverage by 0.04%.
The diff coverage is 96.29%.

@@            Coverage Diff             @@
##             main    #1448      +/-   ##
==========================================
+ Coverage   89.89%   89.93%   +0.04%     
==========================================
  Files         107      107              
  Lines        4293     4301       +8     
  Branches      954      957       +3     
==========================================
+ Hits         3859     3868       +9     
+ Misses        434      433       -1     

Impacted Files	Coverage Δ
packages/rum-core/src/boot/startRum.ts	22.22% <0.00%> (ø)
packages/rum-core/src/domain/configuration.ts	95.45% <ø> (ø)
packages/rum-core/src/domain/viewContexts.ts	100.00% <ø> (ø)
packages/rum-core/src/boot/rumPublicApi.ts	94.79% <100.00%> (+0.05%)	⬆️
packages/rum-core/src/domain/assembly.ts	100.00% <100.00%> (ø)
.../src/domain/rumEventsCollection/view/trackViews.ts	98.03% <100.00%> (+0.08%)	⬆️
.../domain/rumEventsCollection/view/viewCollection.ts	100.00% <100.00%> (ø)
packages/core/src/tools/timeUtils.ts	100.00% <0.00%> (+2.85%)	⬆️

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