[Backport release-25.05] signal-desktop: 7.56.1 -> 7.58.0

[nixpkgs-ci]

Bot-based backport to release-25.05, triggered by a label in #418479.

• Before merging, ensure that this backport is acceptable for the release.
  • Even as a non-committer, if you find that it is not acceptable, leave a comment.

[mweinelt]

Why didn't you wait for CI before merging here?

signal-webrtc> Running phase: configurePhase
signal-webrtc> gn flags: target_os=\"linux\" use_sysroot=false is_clang=false treat_warnings_as_errors=false rtc_build_examples=false rtc_build_tools=false rtc_use_x11=false rtc_enable_sctp=false rtc_libvpx_build_vp9=true rtc_disable_metrics=true rtc_disable_trace_events=true is_debug=false symbol_level=1 rtc_include_tests=false rtc_enable_protobuf=false rust_sysroot_absolute=\"/nix/store/9bc93rjal0wmb7cc5j0c94k5dfl2axiz-rustc-wrapper-1.86.0\"
signal-webrtc> ERROR at //build/toolchain/siso.gni:10:5: Unknown function.
signal-webrtc> if (path_exists("/usr/bin/gcert") ||  # linux
signal-webrtc>     ^----------
signal-webrtc> See //build/toolchain/rbe.gni:8:1: whence it was imported.
signal-webrtc> import("//build/toolchain/siso.gni")
signal-webrtc> ^----------------------------------
signal-webrtc> See //build/config/linux/pkg_config.gni:6:1: whence it was imported.
signal-webrtc> import("//build/toolchain/rbe.gni")
signal-webrtc> ^---------------------------------
signal-webrtc> See //BUILD.gn:24:1: whence it was imported.
signal-webrtc> import("//build/config/linux/pkg_config.gni")
signal-webrtc> ^-------------------------------------------
signal-webrtc> 

[drupol]

Feel free to merge the revert if this issue is still there.

[marcin-serwin]

FYI, the issue has been reported here: #418971

[emilylange]

@drupol you haven't answered why you didn't wait for CI yet. Please explain.

[drupol]

Oh fair point. I figured the revert PR was the answer, a kind of "oops, my bad" in code form. I didn’t mean to ignore the question, just thought actions speak louder than explanations sometimes.

I merged the PR because I am used to merge signal-desktop since quite a while, and it's usually a very stable derivation. I guess I didn't wait for the end because it was stuck or too long? I usually wait for at least one build before pressing the merge button, I don't really remember why I did not in this case.