Meltano

<https://github.com/meltano/meltano/pull/9884|#9884 chore: update readme>
Pull request opened by <https://github.com/edgarrmondragon|edgarrmondragon>
*Summary by Sourcery*

Update README branding assets and badge URL encoding.
Documentation:
• Refresh README logo image sources for light and dark themes.
• Fix URL encoding in the Codespaces live demo badge link.
<https://github.com/meltano/meltano|meltano/meltano>

<https://github.com/meltano/meltano/pull/9884|#9884 chore: update readme>
Pull request ready for review by <https://github.com/edgarrmondragon|edgarrmondragon>
<https://github.com/meltano/meltano|meltano/meltano>

<https://github.com/meltano/meltano/pull/9884|#9884 chore: update readme>
Pull request merged by <https://github.com/edgarrmondragon|edgarrmondragon>
<https://github.com/meltano/meltano|meltano/meltano>