fix: use actions/upload-artifact for GUI test result

[PrajwolAmatya]

Description

We used S3_PUBLIC_CACHE_SERVER to upload and log the test result. But currently, CI cannot connect to the server and returns the following log:

% Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100   141  100   141    0     0   3751      0 --:--:-- --:--:-- --:--:--  3810

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0

100 29.1M  100 29.1M    0     0   167M      0 --:--:-- --:--:-- --:--:--  167M
mc: <ERROR> Unable to initialize new alias from the provided credentials. Get "https://cache.owncloud.com/probe-bsign-znfcyem9plb6frvai2syab2acbzgfh/?location=": dial tcp 116.203.156.14:443: i/o timeout.
Error: Process completed with exit code 1.

So, replacing this with actions/upload-artifact.