Switch all workflow runners back to macos-15 in hope that it will require less ram and won't time out.

.github/workflows/accessibility_tests.yml

@@ -9,7 +9,7 @@ on:
 jobs:
   tests:
     name: Tests
-    runs-on: macos-26
+    runs-on: macos-15
 
     concurrency:
       # Only allow a single run of this workflow on each branch, automatically cancelling older runs.

.github/workflows/automatic-calendar-version.yml

@@ -11,7 +11,7 @@ on:
 # Patch bumps are handled by the release script.
 jobs:
   automatic-calendar-version:
-    runs-on: macos-26
+    runs-on: macos-15
     # Skip in forks
     if: github.repository == 'element-hq/element-x-ios'
     steps:

.github/workflows/danger.yml

@@ -7,7 +7,7 @@ on:
 jobs:
   build:
     name: Danger
-    runs-on: macos-26
+    runs-on: macos-15
 
     steps:
       - name: Checkout

.github/workflows/integration-tests.yml

@@ -9,7 +9,7 @@ on:
 jobs:
   integration_tests:
     name: Integration Tests
-    runs-on: macos-26-xlarge
+    runs-on: macos-15
 
     concurrency:
       # Only allow a single run of this workflow on each branch, automatically cancelling older runs.

.github/workflows/translations-pr.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   open-translations-pr:
-    runs-on: macos-26
+    runs-on: macos-15
     # Skip in forks
     if: github.repository == 'element-hq/element-x-ios'
     steps:

.github/workflows/ui_tests.yml

@@ -13,7 +13,7 @@ on:
 jobs:
   tests:
     name: Tests
-    runs-on: macos-26-xlarge
+    runs-on: macos-15
     strategy:
       fail-fast: false
       matrix:

.github/workflows/unit_tests.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   tests:
     name: Tests
-    runs-on: macos-26-xlarge
+    runs-on: macos-15
 
     concurrency:
       # Only allow a single run of this workflow on each branch, automatically cancelling older runs.

.github/workflows/unit_tests_enterprise.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   tests:
     name: Tests (Enterprise)
-    runs-on: macos-26-xlarge
+    runs-on: macos-15
     
     # Skip in forks
     if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository }}