Revert "update github workflow for testing"

This reverts commit c8e3333e6c.

.github/workflows/test-and-deploy.yml

@@ -13,10 +13,10 @@ permissions:
   pull-requests: read
 
 jobs:
-  test-gpy:
+  test-windows:
     strategy:
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-latest]
+        os: [windows-latest]
         python: ['3.9', '3.10', '3.11', '3.12']
     runs-on: ${{ matrix.os }}
     steps:
@@ -28,18 +28,72 @@ jobs:
         with:
           python-version: ${{ matrix.python }}
 
-      - name: Install build dependencies
+      - name: Install dependencies
         run: |
           pip install setuptools
+          pip install matplotlib
+          pip install pytest
       
       - name: Install lib
         run: |
           python setup.py develop
 
-      - name: Install test dependencies
+      - name: pytest
         run: |
+          pytest GPy/testing
+
+  test-linux:
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        python: ['3.9', '3.10', '3.11', '3.12']
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Install dependencies
+        run: |
+          pip install setuptools
           pip install matplotlib
           pip install pytest
+      
+      - name: Install lib
+        run: |
+          python setup.py develop
+
+      - name: pytest
+        run: |
+          pytest GPy/testing
+  test-macos:
+    strategy:
+      matrix:
+        os: [macos-latest]
+        python: ['3.10', '3.11', '3.12']
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Install dependencies
+        run: |
+          pip install setuptools
+          pip install matplotlib
+          pip install pytest
+      
+      - name: Install lib
+        run: |
+          python setup.py develop
 
       - name: pytest
         run: |
@@ -162,7 +216,7 @@ jobs:
 
   deploy:
     runs-on: ubuntu-latest
-    needs: [test-gpy, build-linux, build-windows, build-macos]
+    needs: [test-windows, test-linux, test-macos, build-linux, build-windows, build-macos]
     if: github.event_name == 'release'
     steps:
       - name: Checkout