fix release script

Author: GrantBirki

script/release

@@ -13,8 +13,8 @@ latest_tag=$(git describe --tags $(git rev-list --tags --max-count=1))
 echo -e "The latest release tag is: ${BLUE}${latest_tag}${OFF}"
 read -p 'New Release Tag (vX.X.X format): ' new_tag
 
-tag_regex='^v\d\.\d\.\d$'
-echo "$new_tag" | grep -E -q $tag_regex
+tag_regex='^v[0-9]+\.[0-9]+\.[0-9]+$'
+echo "$new_tag" | grep -E "$tag_regex"
 
 if [[ $? -ne 0 ]]; then
   echo -e "${RED}ERROR${OFF} - Tag: $new_tag is not valid. Please use vX.X.X format."