[#141] Error when adding a label: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#add-labels-to-an-issue

[#142] Error when adding a label: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#add-labels-to-an-issue

[#143] Error when adding a label: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#add-labels-to-an-issue

[#145] Error when adding a label: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#add-labels-to-an-issue

[#147] Error when adding a label: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#add-labels-to-an-issue

[#148] Error when adding a label: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#add-labels-to-an-issue

[#149] Error when adding a label: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#add-labels-to-an-issue

[#150] Error when adding a label: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#add-labels-to-an-issue

[#151] Error when adding a label: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#add-labels-to-an-issue

If you think that not enough issues were processed you could try to increase the quantity related to the operations-per-run (​https://github.com/actions/stale#operations-per-run​) option which is currently set to 30