Update dependency posthog-js to v1.149.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
posthog-js	1.148.0 -> 1.149.1

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Release Notes

PostHog/posthog-js (posthog-js)

v1.149.1

Compare Source

• fix: web vitals ignored error on init (#​1317)
• chore: fix the rollup bundle visualiser output (#​1315)

v1.149.0

Compare Source

• fix: Fix the referrer changing mid-session (#​1314)

v1.148.2

Compare Source

• fix: don't load preact until you have to (#​1311)
• chore: one less posthog mock and two fewer given tests (#​1312)

v1.148.1

Compare Source

• fix: ignore ridonculously large web vitals values (#​1309)
• chore: move test file (#​1306)

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