v3.241125

Make CheckS3Object work on python2 and SL7

What's Changed

• updating trigger-ci scripts to use explicit true values and new varia… by @aspiringmind-code in #8812
• use curl for http HEAD call. Fix #8811 by @belforte in #8813
• use python2 compatible Popen. Fix #8811 by @belforte in #8826

Full Changelog: v3.241122...v3.241125