fix: skip addition of src attribute for HLS videos

[daibhin]

Changes

Follow on from problem mentioned in PostHog/posthog#25174 (comment)

When testing locally by adding the hls-src attribute to an exported recording I hadn't considered that actual data would add a src attribute to the video, which is picked up as a mutation.

This local URL (something akin to blob:http://localhost:3000/4200b9dc-71b1-42f9-a753-486f93222f0a) then overrides the src that we need to write during the plugin playback.

Rather than trying to detect the insertion of the src attribute using the handler and skip it (not sure this is possible with plugins) we should be able to ignore src attributes on videos that point to local files e.g. HLS videos

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Name	Status	Preview	Updated (UTC)
posthog-js	✅ Ready (Inspect)	Visit Preview	Oct 1, 2024 0:38am

[github-actions]

Size Change: +392 B (+0.01%)

Total Size: 2.81 MB

Filename	Size	Change
dist/all-external-dependencies.js	191 kB	+56 B (+0.03%)
dist/array.full.js	351 kB	+56 B (+0.02%)
dist/array.full.no-external.js	350 kB	+56 B (+0.02%)
dist/module.full.js	351 kB	+56 B (+0.02%)
dist/module.full.no-external.js	350 kB	+56 B (+0.02%)
dist/recorder-v2.js	111 kB	+56 B (+0.05%)
dist/recorder.js	111 kB	+56 B (+0.05%)

ℹ️ View Unchanged

Filename	Size
dist/array.js	167 kB
dist/array.no-external.js	166 kB
dist/exception-autocapture.js	10.5 kB
dist/external-scripts-loader.js	2.35 kB
dist/main.js	167 kB
dist/module.js	167 kB
dist/module.no-external.js	166 kB
dist/surveys-preview.js	59.8 kB
dist/surveys.js	66 kB
dist/tracing-headers.js	8.36 kB
dist/web-vitals.js	10.3 kB

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