macos12 is deprecated. switch to macos13 and macos15

Author: lalitb

.github/workflows/build-ios-mac.yml

@@ -23,7 +23,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [macos-12, macos-14]
+        os: [macos-13, macos-15]
         config: [release, debug]
         simulator: ["'iPhone 8'", "'iPad Air (3rd generation)'"]
     runs-on: ${{ matrix.os }}
@@ -34,9 +34,9 @@ jobs:
       continue-on-error: true
     - name: build
       run: |
-        if [[ "${{ matrix.os }}" == "macos-12" ]]; then
-          export IOS_DEPLOYMENT_TARGET=12.0;
-        elif [[ "${{ matrix.os }}" == "macos-14" ]]; then
-          export IOS_DEPLOYMENT_TARGET=14.0;
+        if [[ "${{ matrix.os }}" == "macos-13" ]]; then
+          export IOS_DEPLOYMENT_TARGET=13.0;
+        elif [[ "${{ matrix.os }}" == "macos-15" ]]; then
+          export IOS_DEPLOYMENT_TARGET=15.0;
         fi
         ./build-tests-ios.sh ${{ matrix.config }} ${{ matrix.simulator }}