chore(main): release 1.268.0

[newrelic-browser-agent-team]

When this PR is merged, a new tagged release will be created with the notes below.

1.268.0 (2024-10-07)

Features

• Add UserAction to GenericEvents (#1186) (1b0bb1d)
• Aggregate UserActions (#1195) (b5e4c6d)

Bug Fixes

• Always return a string for custom stringify method (#1207) (94a9a0b)
• Force generic events feature to clear buffer when unloading (#1202) (d3fac07)

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[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	30.48 kB / 11.03 kB (gzip)	30.48 kB / 11.03 kB (gzip)	0% / 0.03% (gzip)
lite	async-chunk	51.58 kB / 16.74 kB (gzip)	51.58 kB / 16.74 kB (gzip)	0% / 0% (gzip)
pro	loader	51.5 kB / 17.8 kB (gzip)	51.5 kB / 17.8 kB (gzip)	0% / 0.02% (gzip)
pro	async-chunk	99.87 kB / 30.5 kB (gzip)	99.87 kB / 30.5 kB (gzip)	0% / 0% (gzip)
spa	loader	59.16 kB / 20.16 kB (gzip)	59.16 kB / 20.16 kB (gzip)	0% / -0.01% (gzip)
spa	async-chunk	114.93 kB / 34.86 kB (gzip)	114.93 kB / 34.86 kB (gzip)	0% / 0% (gzip)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.69%. Comparing base (94a9a0b) to head (d3391f7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1200   +/-   ##
=======================================
  Coverage   88.69%   88.69%           
=======================================
  Files         168      168           
  Lines        7334     7334           
  Branches     1502     1502           
=======================================
  Hits         6505     6505           
  Misses        706      706           
  Partials      123      123           

Flag	Coverage Δ
unit-tests	78.99% <ø> (ø)

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