Unfreeze SQLAlchemy

[dnil]

This PR adds | fixes:

• unfreeze, used with fix in https://github.com/Clinical-Genomics/chanjo-report/pull/56

How to prepare for test:

• [ ] ssh to ...
• [ ] Install on stage: bash servers/resources/SERVER.scilifelab.se/update-[THIS_TOOL]-stage.sh [THIS-BRANCH-NAME]

How to test:

Expected outcome:

• [ ]

Review:

• [ ] Code approved by
• [ ] Tests executed by
• [ ] "Merge and deploy" approved by

This version is a:

• [ ] MAJOR - when you make incompatible API changes
• [ ] MINOR - when you add functionality in a backwards compatible manner
• [ ] PATCH - when you make backwards compatible bug fixes or documentation/instructions