[2242] Add -o pipefail to konduit.sh

[saliceti]

Context

The simple set -eu doesn't prevent failure when commands are piped to each other

Changes proposed in this pull request

Add -o pipefail to detect failure even when using a pipe

Guidance to review

See explicit failure in https://github.com/DFE-Digital/apply-for-teacher-training/actions/runs/13265051999/job/37032437831

Try konduit with various commands and arguments:

• scripts/konduit.sh apply-staging -- psql
• scripts/konduit.sh apply-staging -- redis-cli
• scripts/konduit.sh -a apply-review-10343 -- redis-cli
• scripts/konduit.sh apply-review-10343 -- pg_dump -E utf8 --clean --compress=1 --if-exists --no-owner --verbose --no-password -f bak.gz
• scripts/konduit.sh -c -i bak.gz apply-review-10343 -- psql
• scripts/konduit.sh -t 120 -n bat-qa apply-review-10343 -- psql
• scripts/konduit.sh -k s189t01-gse-stg-inf-kv -d gse-staging get-school-experience-staging -- psql
• scripts/konduit.sh -k s189t01-gse-stg-inf-kv -s s189t01-gse-stg-pg -d gse-staging get-school-experience-staging -- psql

After merging

Keep an eye on database workflows

Checklist

• I have performed a self-review of my code, including formatting and typos
• I have cleaned the commit history
• I have added the Devops label
• I have attached the pull request to the trello card