chore(migrations): aggregate migrations for 1.1.0 rc1

[ntruchsess]

Description

Migrations 20240614180109_175-RenameMembershipCredential, 20240618085801_118-AddTestCredential and 20240711100008_190-AddDataExchangeGovernanceCredential have been aggregated into new migration 240711100008_1.1.0-rc1

Why

there should only be a single migration per release-candidate.

Issue

199

Checklist

Please delete options that are not relevant.

• [X] I have followed the contributing guidelines
• [X] I have performed a self-review of my own code
• [X] I have successfully tested my changes locally
• [X] I have checked that new and existing tests pass locally with my changes