Update hugo version to v0.139.0

[Xpirix]

Note: This requires updating the version on the server

Proposed changes:

• Update the deprecated codes to run with hugo 0.139.0
• Run the playwright test with the latest hugo version so we will be able to know whenever we have deprecated codes
• This will allow us to run the website on the latest version
• Added a Hugo version checker at themes/hugo-bulma-blocks-theme/layouts/index.html so the command hugo or hugo server will return the following error if the minimum version is not used: ERROR The website requires Hugo v0.139.0 or later.

Cc @haubourg @sweco-sedalh

[haubourg]

Works here with 0.139.2 !

[Xpirix]

Thanks @haubourg. I will merge this once we have the required version on the server.