fix version calc (#2814)

Author: amaskara-dd

.github/workflows/prepare_release.yml

@@ -46,7 +46,7 @@ jobs:
         run: |
           if [ "${VERSION}" = "" ] ; then
             LATEST_TAG=$(git describe --tags --abbrev=0)
-            NEXT_VERSION=$(echo ${LATEST_TAG#datadog-api-client-} | awk '{split($0, a, "."); print a[1] "." a[2] + 1 "." a[3]}')
+            NEXT_VERSION=$(echo ${LATEST_TAG#datadog-api-client-} | awk '{split($0, a, "."); print a[1] "." a[2] + 1 ".0"}')
             echo "version=$NEXT_VERSION" >> $GITHUB_OUTPUT
           else
             echo "version=$VERSION" >> $GITHUB_OUTPUT