Update ESRI map layer attribution text

[coderabbitai]

Overview

The map layer attribution text needs to be updated with ESRI's official attribution text.

Current Implementation

In src/features/projectsV2/ProjectsMap/TimeTravel/index.tsx, the attribution is currently set to a generic placeholder:

attribution: 'layer attribution'

Required Change

Update the attribution text with ESRI's official attribution text.

References

• PR: Feature/project-time-travel #2329
• PR Comment

Notes

• The exact attribution text needs to be confirmed with ESRI's requirements
• This change should be applied to both before and after map instances