Add 404 error handling for tech report

[max-ostapenko]

Related to the errors

To reproduce: https://httparchive.org/reports/techreport/vefsfvfs

[tunetheweb]

A you add | grep -v 404 to this line so it doesn’t try to run that in Lighthouse?

[max-ostapenko]

@tunetheweb which line?

[tunetheweb]

Oops. Forgot to paste that!

httparchive.org/tools/scripts/set_lighthouse_urls.sh

Line 63 in f6c0158

CHANGED_FILES=$(git diff --name-only "main...${COMMIT_SHA}" --diff-filter=d templates config/reports.json | grep -v base.html | grep -v main.html | grep -v ejs | grep -v base_ | grep -v sitemap | grep -v error.html | grep -v techreport/components | grep -v techreport/templates | grep -v techreport/report | grep -v techreport/techreport)

[tunetheweb]

LGTM