ci: fix init remote github (e2b70f6e)

Author: ydhub

.gitlab-ci.yml

@@ -66,6 +66,7 @@ push_master_to_github:
     - base64 --decode --ignore-garbage ~/.ssh/id_rsa_base64 > ~/.ssh/id_rsa
     - chmod 600 ~/.ssh/id_rsa
     - echo -e "Host github.com\n\tStrictHostKeyChecking no\n" >> ~/.ssh/config
+    - git remote remove github &>/dev/null || true
     - git remote add github [email protected]:espressif/esp32-wifi-lib.git
     # Ref: esp-idf tools/ci/push_to_github.sh
     - |