fix(tutorials): install pytest explicitly in tutorial test runner

The tutorial CI runner invokes `uv run pytest`, but pytest is only
declared under each tutorial's optional `dev` extra, which `uv run` does
not install. It used to resolve transitively because agentex-sdk listed
pytest/pytest-asyncio as runtime deps. agentex-sdk 0.11.5 (published
2026-05-29) dropped those (correctly — they're test-only), so the
unpinned `agentex-sdk` dep now resolves without pytest and every tutorial
job fails with `error: Failed to spawn: pytest` before any test runs.

Pass `--with pytest --with pytest-asyncio` to both pytest invocations so
the test deps are requested explicitly. This restores exactly what the
SDK used to provide transitively and works for all tutorials regardless
of how each declares its test dependencies.

Author: smoreinis

examples/tutorials/run_agent_test.sh

@@ -259,16 +259,23 @@ run_test() {
     cd "$tutorial_path" || return 1
 
 
-    # Run the tests with retry mechanism
-    local -a pytest_cmd=("uv" "run" "pytest")
+    # Run the tests with retry mechanism.
+    #
+    # pytest is brought in explicitly via --with: the tutorials only list it
+    # under an optional `dev` extra (which `uv run` does not install), and it
+    # used to be pulled in transitively by agentex-sdk's runtime deps. Once
+    # agentex-sdk 0.11.5 dropped pytest as a runtime dep, `uv run pytest` could
+    # no longer find it ("Failed to spawn: pytest"). Requesting it directly is
+    # robust across all tutorials regardless of how each declares test deps.
+    local -a pytest_cmd=("uv" "run" "--with" "pytest" "--with" "pytest-asyncio" "pytest")
     if [ "$BUILD_CLI" = true ]; then
         local wheel_file
         wheel_file=$(ls /home/runner/work/*/*/dist/agentex_sdk-*.whl 2>/dev/null | head -n1)
         if [[ -z "$wheel_file" ]]; then
             wheel_file=$(ls "${SCRIPT_DIR}/../../dist/agentex_sdk-*.whl" 2>/dev/null | head -n1)
         fi
         if [[ -n "$wheel_file" ]]; then
-            pytest_cmd=("uv" "run" "--with" "$wheel_file" "pytest")
+            pytest_cmd=("uv" "run" "--with" "$wheel_file" "--with" "pytest" "--with" "pytest-asyncio" "pytest")
         fi
     fi