chore: fix fmtcheck targets (#966)

Author: Kagashino

scripts/gofmtcheck.sh

@@ -2,7 +2,7 @@
 
 # Check gofmt
 echo "==> Checking that code complies with gofmt requirements..."
-gofmt_files=$(gofmt -l `find . -name '*.go' | grep -v vendor`)
+gofmt_files=$(gofmt -l `find tencentcloud -name '*.go' | grep -v vendor`)
 if [[ -n ${gofmt_files} ]]; then
     echo 'gofmt needs running on the following files:'
     echo "${gofmt_files}"