Provisioning: Start using latest macOS 11 version 11.6

New tier 1 image's name format is qtci-macos-11-x86_64

Change-Id: Ieb23b64a0981bdd282d2ae482dd5ccda3f7ecaed
Reviewed-by: Ville-Pekka Karhu <ville-pekka.karhu@qt.io>
(cherry picked from commit 1865d70ef8)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

coin/platform_configs/cmake_platforms.yaml

@@ -157,7 +157,7 @@ Configurations:
     Environment variables: [
         'CONAN_PROFILE=coin/conan/profiles/linux-x86_64-gcc']
 -
-    Template: 'qtci-macos-11.0-x86_64-102'
+    Template: 'qtci-macos-11-x86_64-104'
     Target os: 'IOS_ANY'
     Target arch: 'arm64'
     Compiler: 'Clang'

coin/platform_configs/cmake_platforms_static_tests.yaml

@@ -14,7 +14,7 @@ Configurations:
         'LLVM_INSTALL_DIR={{.Env.LLVM_INSTALL_DIR_msvc}}'
     ]
 -
-    Template: 'qtci-macos-11.0-x86_64-102'
+    Template: 'qtci-macos-11-x86_64-104'
     Compiler: 'Clang'
     Features: ['Sccache', 'MinimalStaticTests']
     Configure arguments: '-DQT_BUILD_EXAMPLES=OFF -DCMAKE_BUILD_TYPE=RelWithDebInfo -DBUILD_SHARED_LIBS=OFF -DFEATURE_framework=OFF'

coin/platform_configs/macos-developer-build-tests.yaml

@@ -18,7 +18,7 @@ Configurations:
         Platform dependency: 'macos-latest-xcode-x86_64-developer-build'
     -
         Id: 'macos-11-x86_64-developer-build-tests'
-        Template: 'qtci-macos-11.0-x86_64-102'
+        Template: 'qtci-macos-11-x86_64-104'
         Compiler: 'Clang'
         Features: ['Sccache', 'TestOnly']
         Platform dependency: 'macos-latest-xcode-x86_64-developer-build'

coin/platform_configs/macos.yaml

@@ -35,7 +35,7 @@ Configurations:
         Platform dependency: 'macos-latest-xcode-universal-packaging-build'
     -
         Id: 'macos-11-x86_64-tests'
-        Template: 'qtci-macos-11.0-x86_64-102'
+        Template: 'qtci-macos-11-x86_64-104'
         Compiler: 'Clang'
         Features: ['Sccache', 'TestOnly', 'Packaging']
         Platform dependency: 'macos-latest-xcode-universal-packaging-build'