Add types check to CI

.github/workflows/test.yaml

@@ -257,3 +257,22 @@ jobs:
       - name: Test Unit
         run: |
           pixi run -e ${{ matrix.environment }} test-unit
+
+  type_test_suite:
+    name: lint:${{ matrix.environment }}:${{ matrix.os }}
+    needs: [pre_commit, setup, pixi_lock]
+    runs-on: ${{ matrix.os }}
+    if: needs.setup.outputs.code_change == 'true'
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ["ubuntu-latest"]
+        environment: ["test-type"]
+    timeout-minutes: 120
+    steps:
+      - uses: holoviz-dev/holoviz_tasks/pixi_install@pixi
+        with:
+          environments: ${{ matrix.environment }}
+      - name: Test Type
+        run: |
+          pixi run -e ${{ matrix.environment }} type || echo "Failed"

pixi.toml

@@ -16,6 +16,7 @@ test-311 = ["py311", "test-core", "test", "example", "test-example", "test-unit-
 test-312 = ["py312", "test-core", "test", "example", "test-example", "test-unit-task"]
 test-ui = ["py312", "test-core", "test", "test-ui"]
 test-core = ["py312", "test-core", "test-unit-task"]
+test-type = ["py311", "type"]
 docs = ["py311", "example", "doc"]
 build = ["py311", "build"]
 lint = ["py311", "lint"]
@@ -144,6 +145,22 @@ _install-ui = 'playwright install chromium'
 cmd = 'pytest panel/tests/ui --ui --browser chromium -n logical --dist loadgroup --reruns 3 --reruns-delay 10'
 depends_on = ["_install-ui"]
 
+# =============================================
+# ================== TYPES ====================
+# =============================================
+[feature.type.dependencies]
+mypy = "*"
+pandas-stubs = "*"
+types-bleach = "*"
+types-croniter = "*"
+types-Markdown = "*"
+types-psutil = "*"
+types-requests = "*"
+types-tqdm = "*"
+
+[feature.type.tasks]
+type = 'mypy panel'
+
 # =============================================
 # =================== DOCS ====================
 # =============================================