Fix code style

[pquentin]

#2829 was merged after #2853, and introduced an import error.

[github-actions]

Following you can find the validation results for the API you have changed.

API	Status	Request	Response
open_point_in_time	🟢	7/7	7/7

You can validate this API yourself by using the make validate target.

[github-actions]

The backport to 8.15 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.15 8.15
# Navigate to the new working tree
cd .worktrees/backport-8.15
# Create a new branch
git switch --create backport-2861-to-8.15
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 02c55e1391167fa393559fd262c697acb630e5e5
# Push it to GitHub
git push --set-upstream origin backport-2861-to-8.15
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.15

Then, create a pull request where the base branch is 8.15 and the compare/head branch is backport-2861-to-8.15.

[github-actions]

The backport to 8.14 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.14 8.14
# Navigate to the new working tree
cd .worktrees/backport-8.14
# Create a new branch
git switch --create backport-2861-to-8.14
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 02c55e1391167fa393559fd262c697acb630e5e5
# Push it to GitHub
git push --set-upstream origin backport-2861-to-8.14
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.14

Then, create a pull request where the base branch is 8.14 and the compare/head branch is backport-2861-to-8.14.

[pquentin]

I wanted to backport #2853, not this one. Indeed, this pull request is only needed because of #2829 which is 8.16 only.

I removed the backport labels.