398: Add doctrine migration to change media references from 'v1' to 'v2'

[turegjorup]

Link to ticket

https://leantime.itkdev.dk/#/tickets/showTicket/398

Description

Add doctrine migration to change media references from API 'v1' to API 'v2' in slide content. Example:

{"images":["\/v1\/media\/01G1R1GWYWGBWNDK83AMGR3WAQ","\/v1\/media\/01G1R1GX31VBARESFZAMPJDWRF","\/v1\/media\/01G1R1GXAR4SBN4HT12PBH6XER"],"imageDuration":5}
{"images":["\/v2\/media\/01G1R1GWYWGBWNDK83AMGR3WAQ","\/v2\/media\/01G1R1GX31VBARESFZAMPJDWRF","\/v2\/media\/01G1R1GXAR4SBN4HT12PBH6XER"],"imageDuration":5}

Screenshot of the result

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Checklist

• My code is covered by test cases.
• My code passes our test (all our tests).
• My code passes our static analysis suite.
• My code passes our continuous integration process.

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should be exempt from the list.

Additional comments or questions

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