fix: Upgrade rrweb to 18

[metal-messiah]

Upgrade RRWeb dependency to version 18 to improve session replay performance.

Overview

This PR will need extra validation in staging, pair with AppExp team.

Related Issue(s)

Testing

[github-actions]

Asset Size Report

Merging this pull request will result in the following asset size changes:

Agent	Asset	Previous Size	New Size	Diff
lite	loader	30.89 kB / 11.21 kB (gzip)	30.89 kB / 11.21 kB (gzip)	0% / 0% (gzip)
lite	async-chunk	53.61 kB / 17.47 kB (gzip)	53.61 kB / 17.47 kB (gzip)	0% / 0% (gzip)
pro	loader	52.58 kB / 18.16 kB (gzip)	52.58 kB / 18.16 kB (gzip)	0% / -0.02% (gzip)
pro	async-chunk	101.31 kB / 31.02 kB (gzip)	101.31 kB / 31.02 kB (gzip)	0% / 0% (gzip)
spa	loader	60.2 kB / 20.47 kB (gzip)	60.2 kB / 20.47 kB (gzip)	0% / 0% (gzip)
spa	async-chunk	116.02 kB / 35.35 kB (gzip)	116.02 kB / 35.35 kB (gzip)	0% / 0% (gzip)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.90%. Comparing base (3222bad) to head (7f8ea9a).
Report is 7 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1383   +/-   ##
=======================================
  Coverage   88.90%   88.90%           
=======================================
  Files         170      170           
  Lines        7366     7366           
  Branches     1488     1488           
=======================================
  Hits         6549     6549           
  Misses        711      711           
  Partials      106      106           

Flag	Coverage Δ
unit-tests	79.96% <ø> (ø)

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