ci: repair the clang-format and gersemi checks

[EdueskaWeiz]

Both format checks currently fail on every PR that touches C/C++ or CMake files, because Homebrew no longer runs formula install steps from an untrusted third party tap:

Skipping obsproject/tools because it is not trusted. Run `brew trust obsproject/tools`
Error: unknown install step: run

The failure happens in the install step, not in the formatting itself, so it is unrelated to the contents of the PR being checked (see the red clang-format / gersemi checks on #333).

Fix: refresh the Homebrew metadata and trust the obsproject/tools tap before installing the formatters. This mirrors the change obs-studio applied upstream in .github/actions/run-clang-format and .github/actions/run-gersemi.

The pinned tool versions are deliberately left untouched (clang-format 19.1.1 as required by build-aux/run-clang-format, and the tap's default gersemi formula), so no reformatting of existing files is expected.

[EdueskaWeiz]

Two notes so this is not misleading when you look at it:

• The workflow on this PR is waiting for your approval, so the Checks tab is currently empty.
• Even once it runs, the checks on this PR will pass trivially: check-changes filters on '*.c' '*.h' '*.cpp' '*.hpp' '*.m' '*.mm' and '*.cmake' '*CMakeLists.txt', and this PR only touches .yaml. So hasChangedFiles is false and the Homebrew install step is skipped entirely.

The real proof is #333, which touches src/ptz-action-source.c and shared/properties-view/CMakeLists.txt and therefore does exercise the install step. Re-running its checks after merging this should show them green.

[glikely]

Looks good. I'm going to squash the two commits together as they are effectively the same change, just in two different paths. The CI build completed fine.

[glikely]

Side note; I'm not excided about the non email address you're using in your SignedOff by. That's not actually helpful as it isn't a way to contact you. Are you able to use a real email address?

[EdueskaWeiz]

Yes, of course — sorry about that. I had "Keep my email addresses private" enabled on my account, and since I created those commits through the web editor, GitHub substituted the noreply address without me noticing.

Fixed now. My git config uses eddyweiz@gmail.com, and I have rewritten the four commits on #333 so that both the author and the Signed-off-by line carry it. The patches themselves are byte-for-byte unchanged — I diffed the old and new series against each other to be sure.

While rewriting them I rebased onto current main, which now includes your squash of this PR. That also means #333 picks up the brew trust fix, so the two formatter checks there should finally go green rather than failing on the Homebrew install step. CI is running on the new head now and did not need approval this time.

Thanks for squashing the two commits — that was the right call, they were the same change in two paths.

[glikely]

Thanks Eddy. I appreciate the work you're doing on the plugin