Both Mobile and Desktop versions include RiseupVPN in Circumvention tests description

[sloncocs]

Describe the bug

Both Mobile and Desktop versions include RiseupVPN in Circumvention tests description while the RiseupVPN test is temporarily disabled.

To Reproduce

Open Circumvention card in either OONI Probe Mobile or OONI Probe Desktop. Currently the following description of the card is presented:
"Check whether Psiphon, Tor or RiseupVPN are blocked."

Expected behaviour

Check whether Psiphon or Tor are blocked.

Screenshots

System information (please complete the following information):

• OONI Probe version: 3.7.0

Additional context

There is a concern that if we edit an original string in Transifex, we will lose all the translations of the same string. However, as the sentence's structure doesn't change and there are no words to translate (we either add or delete 'RiseupVPN'), I think we can manage to edit the translation to all languages by ourselves.

[hellais]

This is still an issue. Adding @aanorbel and @sdsantos

[aanorbel]

Yes it is an issue

[sdsantos]

We need to update all string translations to remove that mention.

[hellais]

If this string is changed everybody will have to retranslate it. We can't do it as part of launch.