Fix GUI test GitHub action on Windows by replacing wget with curl

[kozlovsky]

Currently, GUI tests GitHub action refuses to work due to the following error:

These files don't exist: cached-bin/libsodium-1.0.18/libsodium.dll
Run C:\msys64\usr\bin\wget.exe -q https://download.libsodium.org/libsodium/releases/libsodium-1.0.18-msvc.zip
  C:\msys64\usr\bin\wget.exe -q https://download.libsodium.org/libsodium/releases/libsodium-1.0.18-msvc.zip
  7z x libsodium-1.0.18-msvc.zip
  dir %RELEASE_FOLDER% /ad /b /o-n > latest_release_file
  set /p latest_release= < latest_release_file
  echo Latest release: %latest_release%
  if not exist "cached-bin\libsodium-1.0.18" mkdir "cached-bin\libsodium-1.0.18"
  copy %RELEASE_FOLDER%\%latest_release%\dynamic\libsodium.dll .\cached-bin\libsodium-1.0.18\libsodium.dll
  shell: C:\Windows\system32\cmd.EXE /D /E:ON /V:OFF /S /C "CALL "{0}""
  env:
    PYTEST_SENTRY_DSN: ***
    pythonLocation: C:\hostedtoolcache\windows\Python\3.8.10\x64
    PKG_CONFIG_PATH: C:\hostedtoolcache\windows\Python\3.8.10\x64/lib/pkgconfig
    Python_ROOT_DIR: C:\hostedtoolcache\windows\Python\3.8.10\x64
    Python2_ROOT_DIR: C:\hostedtoolcache\windows\Python\3.8.10\x64
    Python3_ROOT_DIR: C:\hostedtoolcache\windows\Python\3.8.10\x64
    VIRTUAL_ENV: C:\Users\runneradmin\.virtualenvs\.venv
    RELEASE_FOLDER: .\libsodium\x64\Release

7-Zip 23.01 (x64) : Copyright (c) 1999-2023 Igor Pavlov : 2023-06-20

Scanning the drive for archives:

ERROR: The system cannot find the file specified.
libsodium-1.0.18-msvc.zip

Examples:

• https://github.com/Tribler/tribler/actions/runs/8327533783/job/22785427033#step:4:96
• https://github.com/Tribler/tribler/actions/runs/8326898779/job/22783469947#step:4:96

It looks like wget has some problems with certificates that prevent downloading the libsodium library.

This PR fixes the problem by replacing the wget call with the curl call. Windows dependencies build successfully with this fix.

wget is linked to OpenSSL whereas curl is linked to the NSS cryptographic libraries, and this can explain the difference: https://serverfault.com/questions/922222/why-does-curl-work-with-a-specific-https-site-but-wget-has-problems-with-certif