Fix: Outdated 21.04 link in Feed Sync Notification.

[cfi-gb]

What

Introduced in #4120 and currently pointing at a dead / 404 link as the GOS 21.04 documentation is no longer available.

Why

Obvious...

References

None

[github-actions]

Conventional Commits Report

Type	Number
Bug Fixes	1

🚀 Conventional commits found.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.68%. Comparing base (b42f1d8) to head (77e2b30).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4230   +/-   ##
=======================================
  Coverage   62.68%   62.68%           
=======================================
  Files        1111     1111           
  Lines       98795    98795           
  Branches     6497     6497           
=======================================
  Hits        61931    61931           
  Misses      36733    36733           
  Partials      131      131           

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[bjoernricks]

@cfi-gb could you update the failing test case too?

[y0urself]

@cfi-gb Also please consider using a feature branch instead of a fork, otherwise the PR is not mergable, due to failing CI. Thank you.

[cfi-gb]

• Test case failure seems to be completely unrelated as i haven't touched anything on e.g. the footer / copyright year
• AFAICT i don't have any permission to create a feature branch and usually this shouldn't be required at all (remember, there are also 3rd party contributors)

As this PR is already way too long open and is causing too much overhead for such a minor change @greenbone/gsa-maintainers please take over and fix the link on your own in a separate PR (maybe also directly point to the 24.04 docs once available).

[cfi-gb]

It seems this got handled in #4289 now.