DPL: Fix memory leak in variant_helper

[ktf]

DPL: Fix memory leak in variant_helper

[github-actions]

REQUEST FOR PRODUCTION RELEASES:
To request your PR to be included in production software, please add the corresponding labels called "async-" to your PR. Add the labels directly (if you have the permissions) or add a comment of the form (note that labels are separated by a ",")

+async-label <label1>, <label2>, !<label3> ...

This will add <label1> and <label2> and removes <label3>.

The following labels are available
async-2023-pbpb-apass3
async-2023-pbpb-apass4
async-2022-pp-apass6-2023-PbPb-apass2
async-2022-pp-apass4
async-2022-pp-apass4-accepted
async-2022-pp-apass6-2023-PbPb-apass2-accepted
async-2023-pbpb-apass3-accepted
async-2023-pbpb-apass4-accepted

[ktf]

@benedikt-voelkel can we have a +all?

[benedikt-voelkel]

Sounds good!
I will update the workflow so that we will have some better usage by Monday, including an +async-label all

[martenole]

Unfortunately the CCDB backend is still leaking memory at the same rate as before with this PR included

[ktf]

Mmmm... did you actually include the PR separately? For some reason is not yet merged, even if I though I did click on "merge".

[ktf]

Now merged.