### Bug Description `snapcraft` doesn't detect OAuth flow credentials. ``` craft-store error: Credentials could not be parsed. Expected valid Ubuntu One credentials. ``` It should be able to detect which credentials is used without `SNAPCRAFT_STORE_AUTH=candid` explicitly. ### To Reproduce Set `SNAPCRAFT_STORE_AUTH=candid` when `export-login` and then try to use that file for publishing snap. ### Environment `ubuntu-latest. ### snapcraft.yaml ```shell core:22 ``` ### Relevant log output ```shell Run snapcore/action-publish@v1 Publishing snap "snapcrafting/myip/myip_1_amd64.snap"... /snap/bin/snapcraft upload snapcrafting/myip/myip_1_amd64.snap --release stable Starting Snapcraft 7.4.3 Logging execution to '/home/runner/.local/state/snapcraft/log/snapcraft-20230623-043854.750010.log' craft-store error: Credentials could not be parsed. Expected valid Ubuntu One credentials. Full execution log: '/home/runner/.local/state/snapcraft/log/snapcraft-20230623-043854.750010.log' Error: The process '/snap/bin/snapcraft' failed with exit code 1 ``` ### Additional context _No response_