[tests] Add xtro support for Mac Catalyst. Fixes #10214.

[rolfbjarne]

• Add support to xtro for Mac Catalyst.
• Add all the .todo files so that xtro doesn't fail.
• Bump Objective-Sharpie.

Fixes #10214.

[spouliot]

There's a lot of files that should not be present in the PR, e.g. MacCatalyst-ruby.todo

IOW anything we don't support for macOS (or iOS) should not be committed as .todo (or even .ignore)

Beside the filtering things looks good :)

[spouliot]

are those exclusions to make sharpie work ?
because others do/should exists

[rolfbjarne]

Yes, this is to make sharpie work (the corresponding headers don't compile with Mac Catalyst).

[rolfbjarne]

build

[rolfbjarne]

build

[rolfbjarne]

build

[monojenkins]

Build failure
✅ Provisioning succeeded
✅ Build succeeded
✅ API Diff (from stable)
✅ API Diff (from PR only) (no change)
✅ Generator Diff (no change)
🔥 Test run failed 🔥

Test results

1 tests failed, 74 tests passed.

Failed tests

• Xtro/Mac: Failed (Test run failed.)

[monojenkins]

Build failure
✅ Provisioning succeeded
✅ Build succeeded
✅ API Diff (from stable)
🔥 Failed to compare API and create generator diff 🔥
    ** Error: Working directory isn't clean:
    HEAD detached at 58e6632
    Untracked files:
    (use "git add ..." to include in what will be committed)
    tools/dotnet-linker/packages/
    
    nothing added to commit but untracked files present (use "git add" to track)
    Search for Comparing API & creating generator diff in the log to view the complete log.
✅ Test run succeeded

[rolfbjarne]

API comparison failure is unrelated.