[CI] Bump to use macOS Tahoe

[dalexsoto]

No description provided.

[rolfbjarne]

• Xamarin.Tests.AppSizeTest.MonoVM_Interpreter(iOS,"ios-arm64"): App size changed significantly (-13,851 bytes (-13.5 KB = -0.0 MB) different > tolerance of +-10,240 bytes (10.0 KB = 0.0 MB)).

It seems that building on Tahoe changes the app size... I can reproduce the same behavior here, building on my MacBook with Tahoe yields different app size than building on my MacMini with Sequoia.

[vs-mobiletools-engineering-service2]

✅ [CI Build #7db7589] Build passed (Build packages) ✅

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[vs-mobiletools-engineering-service2]

✅ [CI Build #7db7589] Build passed (Build macOS tests) ✅

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build #7db7589] Tests on macOS M1 - Mac Monterey (12) passed 💻

✅ All tests on macOS M1 - Mac Monterey (12) passed.

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build #7db7589] Tests on macOS arm64 - Mac Sequoia (15) passed 💻

✅ All tests on macOS arm64 - Mac Sequoia (15) passed.

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build #7db7589] Tests on macOS M1 - Mac Ventura (13) passed 💻

✅ All tests on macOS M1 - Mac Ventura (13) passed.

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build #7db7589] Tests on macOS arm64 - Mac Tahoe (26) passed 💻

✅ All tests on macOS arm64 - Mac Tahoe (26) passed.

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[vs-mobiletools-engineering-service2]

💻 [CI Build #7db7589] Tests on macOS X64 - Mac Sonoma (14) passed 💻

✅ All tests on macOS X64 - Mac Sonoma (14) passed.

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[vs-mobiletools-engineering-service2]

✅ [PR Build #7db7589] Build passed (Detect API changes) ✅

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[vs-mobiletools-engineering-service2]

✅ API diff for current PR / commit

NET (empty diffs)

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

✅ API diff vs stable

NET (empty diffs)

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

ℹ️ Generator diff

Generator Diff: vsdrops (html) vsdrops (raw diff) gist (raw diff) - Please review changes)

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[vs-mobiletools-engineering-service2]

🚀 [CI Build #7db7589] Test results 🚀

Test results

✅ All tests passed on VSTS: test results.

🎉 All 130 tests passed 🎉

Tests counts

✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (iOS): All 1 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ dotnettests (MacCatalyst): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (macOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (Multiple platforms): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (tvOS): All 1 tests passed. Html Report (VSDrops) Download
✅ framework: All 2 tests passed. Html Report (VSDrops) Download
✅ fsharp: All 4 tests passed. Html Report (VSDrops) Download
✅ generator: All 5 tests passed. Html Report (VSDrops) Download
✅ interdependent-binding-projects: All 4 tests passed. Html Report (VSDrops) Download
✅ introspection: All 6 tests passed. Html Report (VSDrops) Download
✅ linker: All 44 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ monotouch (iOS): All 11 tests passed. [attempt 3] Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 15 tests passed. [attempt 4] Html Report (VSDrops) Download
✅ monotouch (macOS): All 12 tests passed. Html Report (VSDrops) Download
✅ monotouch (tvOS): All 11 tests passed. Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ windows: All 3 tests passed. Html Report (VSDrops) Download
✅ xcframework: All 4 tests passed. Html Report (VSDrops) Download
✅ xtro: All 1 tests passed. Html Report (VSDrops) Download

Pipeline on Agent
Hash: 7db75899f8206c93f598edb9c4f7ef7ede216547 [PR build]

[dalexsoto]

Machines are now re-imaged, will get the second batch started once Xcode 26.3 is stable