Change oasdiff package origin

Author: paolino

scripts/buildkite/release/openapi-diff.sh

@@ -8,7 +8,7 @@ GOPATH=$(mktemp -d)
 export GOPATH
 
 # go install is going to write unremovable stuff to the $GOPATH/bin directory
-go install github.com/tufin/oasdiff@latest
+go install github.com/oasdiff/oasdiff@latest
 
 swagger_tmp=$(mktemp -d)
 swagger_file="specifications/api/swagger.yaml"