fix: wrong env name

[heueristik]

Description

The management DAO ENS subdomain env var name was not updated after we changed it from MANAGINGDAO_SUBDOMAIN to MANAGEMENT_DAO_SUBDOMAIN.

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)

Checklist:

• [x] I have selected the correct base branch.
• [x] I have performed a self-review of my own code.
• [x] I have commented my code, particularly in hard-to-understand areas.
• [x] My changes generate no new warnings.
• [x] Any dependent changes have been merged and published in downstream modules.
• [x] I ran all tests with success and extended them if necessary.
• [x] I have updated the CHANGELOG.md file in the root folder.
• [x] I have updated the DEPLOYMENT_CHECKLIST file in the root folder.
• [x] I have updated the UPDATE_CHECKLIST file in the root folder.
• [x] I have updated the Subgraph and added a QA URL to the description of this PR.