update seafile-client and gui to 9.0.19 update libsearpc to 3.3

[d.stoye_cms.hu-berlin.de]

Summary

Changelogs:
https://github.com/haiwen/seafile-client/releases/tag/v9.0.19
https://github.com/haiwen/libsearpc/releases/tag/v3.3-latest

[d.stoye_cms.hu-berlin.de]

i hope it's okay to add you (again) as reviewers

[michaelo]

No issue, I will take it.

[michaelo]

Here the same question again: Can those be upstreamed?

[d.stoye_cms.hu-berlin.de]

In D58168#1335992, @michaelo wrote:

Here the same question again: Can those be upstreamed?

there are several individual pull request with most of the patches,
e.g. https://github.com/haiwen/seafile-client/pull/1670 , 1634 and 1611,
upstream is currently not merging anything, because they are "in the progress" of completing the port to qt 6.8/6.9

[michaelo]

Running the build now...

[michaelo]

Builds for me.