Fix chart generation to use https

Description

"The page at https://unicode-org.github.io/cldr-staging/charts/36/delta/supplemental-data.html was not allowed to run insecure content from http://www.unicode.org/webscripts/standard_styles.css.
supplemental-data.html:21"

change the CSS reference to https

xpath

None

locale

None

Priority

critical

Assignee

Mark Davis

Reporter

Mark Davis

tracReporter

None

Reviewer

None

Labels

None

Components

Fix versions

phase

spec-beta
Configure