Fix checkforupdates.sh: remove set -e and invalid snap refresh flag#11

Copilot wants to merge 2 commits intoUpdated-scripts-and-readme-2026-Febandreak3779/awk_linux_scripts:Updated-scripts-and-readme-2026-Febfrom

copilot/sub-pr-8-another-oneandreak3779/awk_linux_scripts:copilot/sub-pr-8-another-oneCopy head branch name to clipboard