Fix migration for postgres support.

[marcelklehr]

Fix#457

[solracsf]

Fix #457

[nickvergessen]

Needs backporting like the breaking PR?

[nickvergessen]

• ref (fix): Encrypt sensitive values(haproxy_password) in the DB #451

[nickvergessen]

/backport to stable30

[nickvergessen]

/backport to stable29

[backportbot]

The backport to stable30 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable30
git pull origin stable30
# Create the new backport branch
git checkout -b backport/456/stable30
# Cherry pick the change from the commit sha1 of the change against the default branch# This might cause conflicts, resolve them
git cherry-pick 3858a651
# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/456/stable30

Error: Failed to cherry pick commits: error: no cherry-pick or revert in progress
fatal: cherry-pick failed

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[backportbot]

The backport to stable29 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable29
git pull origin stable29
# Create the new backport branch
git checkout -b backport/456/stable29
# Cherry pick the change from the commit sha1 of the change against the default branch# This might cause conflicts, resolve them
git cherry-pick 3858a651
# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/456/stable29

Error: Failed to cherry pick commits: error: no cherry-pick or revert in progress
fatal: cherry-pick failed

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[nickvergessen]

/backport to stable30

[backportbot]

The backport to stable30 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable30
git pull origin stable30
# Create the new backport branch
git checkout -b backport/456/stable30
# Cherry pick the change from the commit sha1 of the change against the default branch# This might cause conflicts, resolve them
git cherry-pick 3858a651
# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/456/stable30

Error: Failed to cherry pick commits: error: no cherry-pick or revert in progress
fatal: cherry-pick failed

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.