feat: Sync upstream master code (#54)

* fix: Fix kernelspec

Signed-off-by: cegao <ce.gao@outlook.com>

* Update

Signed-off-by: cegao <ce.gao@outlook.com>

* fix: Add public key

Signed-off-by: cegao <ce.gao@outlook.com>

Author: gaocegege

examples/elastic-with-custom-kernels/kubeflow.tkestack.io_v1alpha1_jupyterkernelspec.yaml

@@ -21,3 +21,5 @@ spec:
   - "{port_range}"
   - "--RemoteProcessProxy.response-address"
   - "{response_address}"
+  - "--RemoteProcessProxy.public-key"
+  - "{public_key}"