gitlab: update macos/ios tags for newer vm image

Part-of: <!389>

gitlab/ci_template.yml

@@ -1034,7 +1034,7 @@ cerbero cross-android universal examples:
     CERBERO_OVERRIDDEN_DIST_DIR: "/Library/Frameworks/GStreamer.framework/Versions/1.0"
     CERBERO_HOST_DIR: "/Users/gst-ci/cerbero/"
   tags:
-    - gst-macos-10.15
+    - gst-macos-11.1
   artifacts:
     name: "${CI_JOB_NAME}_${CI_COMMIT_SHA}"
     expire_in: '5 days'
@@ -1069,7 +1069,7 @@ build cerbero macos x86_64:
     HAVE_CCACHE: ""
     CERBERO_HOST_DIR: "/Users/gst-ci/cerbero/"
   tags:
-    - gst-ios-13.2
+    - gst-ios-14.3
   artifacts:
     name: "${CI_JOB_NAME}_${CI_COMMIT_SHA}"
     expire_in: '5 days'
@@ -1185,7 +1185,7 @@ documentation:
   after_script:
     - rm -rf ${EXAMPLES_HOME}/gst-examples ${EXAMPLES_HOME}/gst-docs
   tags:
-    - gst-ios-13.2
+    - gst-ios-14.3
 
 cross-ios universal examples:
   extends: ".cross-ios universal examples"