Removed deprecated virtual environments

.github/workflows/tests.yml

@@ -66,30 +66,3 @@ jobs:
 
       - name: 📦 Package Vexil
         run: cd Vexil && ../.build/release/swift-create-xcframework --zip --zip-version 1.2.2 --platform ios --platform macos --platform tvos --platform watchos
-
-  tests-xcode-macos10_15:
-    name: Test Builds - macOS 10.15
-    runs-on: macos-10.15
-    strategy:
-      matrix:
-        xcode: [ "12.2", "12.3", "12.4" ]
-
-    env:
-      DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode }}.app/Contents/Developer
-
-    steps:
-      - name: 🛒 Checkout
-        uses: actions/checkout@v2
-
-      - name: 🧱 Build
-        run: make build-release
-
-      - name: 🚩 Checkout Vexil
-        uses: actions/checkout@v2
-        with:
-          repository: unsignedapps/Vexil
-          ref: v1.2.2
-          path: Vexil
-
-      - name: 📦 Package Vexil
-        run: cd Vexil && ../.build/release/swift-create-xcframework --zip --zip-version 1.2.2 --platform ios --platform macos --platform tvos --platform watchos