bots: add skeleton for stalebot (#3547)
bots: add skeleton for stalebot (#3547)

Signed-off-by: Christopher M. Luciano <6a3ee4b7e940bce72c1857de462f1d5fc92fcd3d@us.ibm.com>

envoyproxy/envoy-wasm,istio/envoy,istio/envoy,lyft/envoy,envoyproxy/envoy,jrajahalme/envoy,eklitzke/envoy,envoyproxy/envoy,eklitzke/envoy,istio/envoy,lizan/envoy,envoyproxy/envoy-wasm,jrajahalme/envoy,envoyproxy/envoy,lizan/envoy,envoyproxy/envoy,dnoe/envoy,envoyproxy/envoy,lizan/envoy,istio/envoy,jrajahalme/envoy,eklitzke/envoy,envoyproxy/envoy,eklitzke/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,lizan/envoy,envoyproxy/envoy-wasm,lyft/envoy,lyft/envoy,envoyproxy/envoy,dnoe/envoy,lizan/envoy,envoyproxy/envoy,lyft/envoy,istio/envoy,envoyproxy/envoy,istio/envoy,dnoe/envoy,envoyproxy/envoy,jrajahalme/envoy,dnoe/envoy,lyft/envoy,envoyproxy/envoy-wasm,dnoe/envoy,lyft/envoy,envoyproxy/envoy-wasm,jrajahalme/envoy,envoyproxy/envoy,eklitzke/envoy,envoyproxy/envoy-wasm,lizan/envoy,istio/envoy,jrajahalme/envoy,eklitzke/envoy