Update macOS SDK from 11.0 -> 11.3.

This commit will be squashed before merge.

Author: wcarss

.github/workflows/macos-builds-on-all.yaml

@@ -83,8 +83,8 @@ jobs:
           sudo xcode-select -switch /Applications/Xcode_13.0.app/Contents/Developer/
 
           # Set SDK environment variables
-          echo "SDKROOT=$(xcrun -sdk macosx11.0 --show-sdk-path)" >> $GITHUB_ENV
-          echo "MACOSX_DEPLOYMENT_TARGET=$(xcrun -sdk macosx11.0 --show-sdk-platform-version)" >> $GITHUB_ENV
+          echo "SDKROOT=$(xcrun -sdk macosx11.3 --show-sdk-path)" >> $GITHUB_ENV
+          echo "MACOSX_DEPLOYMENT_TARGET=$(xcrun -sdk macosx11.3 --show-sdk-platform-version)" >> $GITHUB_ENV
         if: matrix.target == 'aarch64-apple-darwin'
       - name: Ensure we have our goal target installed
         run: |

ci/actions-templates/macos-builds-template.yaml

@@ -83,8 +83,8 @@ jobs:
           sudo xcode-select -switch /Applications/Xcode_13.0.app/Contents/Developer/
 
           # Set SDK environment variables
-          echo "SDKROOT=$(xcrun -sdk macosx11.0 --show-sdk-path)" >> $GITHUB_ENV
-          echo "MACOSX_DEPLOYMENT_TARGET=$(xcrun -sdk macosx11.0 --show-sdk-platform-version)" >> $GITHUB_ENV
+          echo "SDKROOT=$(xcrun -sdk macosx11.3 --show-sdk-path)" >> $GITHUB_ENV
+          echo "MACOSX_DEPLOYMENT_TARGET=$(xcrun -sdk macosx11.3 --show-sdk-platform-version)" >> $GITHUB_ENV
         if: matrix.target == 'aarch64-apple-darwin'
       - name: Ensure we have our goal target installed
         run: |