RSA support and Fix MacOS 14+

What's Changed

• added workflow for handling answerable discussion by @yasminetalby in #156
• Fix aws-c-cal-config.cmake by @graebm in #158
• Be more explicit on int format in DER by @DmitriyMusatkin in #160
• RSA support by @DmitriyMusatkin in #159
• fix for byo crypto compile and add ci for it by @TingDaoK in #162
• Use fake pub key by @TingDaoK in #163

New Contributors

• @yasminetalby made their first contribution in #156

Full Changelog: v0.6.2...v0.6.3