added scripts for release

Author: yangwao

.github/push_release_beta.sh

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+gh pr list -s merged --json url -B main --jq ".[] | .url" | sed 's/^/- /' $1 | awk 'BEGIN{print "copilot:summary \n"}{ print}' $1 | gh pr create -t "beta update" -d -H main -B beta -l beta --body-file -

.github/push_release_production.sh

@@ -0,0 +1 @@
+gh pr list -s merged --json url -B main --jq ".[] | .url" | sed 's/^/- /' $1 | awk 'BEGIN{print "copilot:summary \n"}{ print}' $1 | gh pr create -t "release update" -d -H beta -B production -l release --body-file -