🐛 ♻️ [RUMF 1470] Fix serialization issues

[yannickadam]

Motivation

We sometimes experience issues while serializing user-provided data:

• Containing Cyclic References
• Containing unserializable types (BigInt)
• Large objects over the maximum event size, preventing data from being sent
• Faulty toJSON functions

Changes

This PR introduces a function named sanitize that is meant to be called each time user-provided data is ingested.
In it's current form, it should be minimally invasive to be merged into a minor release.
Later - We can introduce better/more relevant serialization for specific types which will introduce breaking changes.

Testing

• Local
• Staging
• Unit
• End to end

---

I have gone over the contributing documentation.

[codecov-commenter]

Codecov Report

Merging #1971 (d84f9ae) into main (f6eb48d) will increase coverage by 0.01%.
The diff coverage is 98.00%.

@@            Coverage Diff             @@
##             main    #1971      +/-   ##
==========================================
+ Coverage   93.50%   93.51%   +0.01%     
==========================================
  Files         159      160       +1     
  Lines        5496     5586      +90     
  Branches     1254     1293      +39     
==========================================
+ Hits         5139     5224      +85     
- Misses        357      362       +5     

Impacted Files	Coverage Δ
packages/logs/src/domain/logger.ts	92.68% <75.00%> (-2.06%)	⬇️
packages/rum-core/src/boot/rumPublicApi.ts	92.47% <88.88%> (-0.56%)	⬇️
...kages/core/src/domain/console/consoleObservable.ts	100.00% <100.00%> (ø)
packages/core/src/tools/contextManager.ts	100.00% <100.00%> (ø)
packages/core/src/tools/error.ts	94.00% <100.00%> (+0.12%)	⬆️
packages/core/src/tools/limitModification.ts	100.00% <100.00%> (ø)
packages/core/src/tools/sanitize.ts	100.00% <100.00%> (ø)
packages/core/src/tools/utils.ts	82.21% <100.00%> (ø)
packages/logs/src/boot/logsPublicApi.ts	100.00% <100.00%> (ø)
...rum-core/src/domain/contexts/featureFlagContext.ts	92.30% <100.00%> (ø)

... and 2 files with indirect coverage changes

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