more CI fix

Author: TingDaoK

.github/workflows/ci.yml

@@ -202,7 +202,7 @@ jobs:
         python builder.pyz build -p ${{ env.PACKAGE_NAME }} downstream
 
   macos:
-    runs-on: macos-14 #latest
+    runs-on: macos-15 #latest
     steps:
     - uses: aws-actions/configure-aws-credentials@v4
       with:
@@ -220,7 +220,7 @@ jobs:
         python3 codebuild/macos_compatibility_check.py
 
   macos-x64:
-    runs-on: macos-14-large #latest
+    runs-on: macos-15-large #latest
     steps:
     - uses: aws-actions/configure-aws-credentials@v4
       with:
@@ -287,7 +287,7 @@ jobs:
 
 
   localhost-test-macos:
-    runs-on: macos-14 # latest
+    runs-on: macos-15 # latest
     steps:
     - uses: aws-actions/configure-aws-credentials@v4
       with:
@@ -346,6 +346,8 @@ jobs:
         submodules: true
     - name: Configure local host
       run: |
+        python3 -m venv .venv
+        source .venv/bin/activate
         python3 -m pip install h2
         cd crt/aws-c-http/tests/mock_server/
         python3 h2tls_mock_server.py &