fix: Use POSIX-compliant syntax

Author: PROFeNoM

.circleci/continue_config.yml

@@ -259,11 +259,11 @@ aliases:
           echo 'Fetching from remote repository'
           retry_count=3
           if [ -n "$CIRCLE_TAG" ]; then
-            for ((i=0; i<$retry_count; i++)); do
+            for i in $(seq 1 $retry_count); do
               git fetch --force --no-recurse-submodules --tags origin && break || sleep 1
             done
           elif [ -z "$CIRCLE_PR_NUMBER" ]; then
-            for ((i=0; i<$retry_count; i++)); do
+            for i in $(seq 1 $retry_count); do
               git fetch --force --no-recurse-submodules origin "+refs/heads/$CIRCLE_BRANCH:refs/remotes/origin/$CIRCLE_BRANCH" && break || sleep 1
             done
           fi