Release v0.12.8

What's Changed

• connectivity: Send request to 1.1.1.1 over TCP/443 instead of TCP/80 by @pchaigno in #1219
• Update stable release to v0.12.7 by @tklauser in #1220
• build(deps): bump library/golang from dc4f475 to d171aa3 by @dependabot in #1221
• build(deps): bump library/busybox from c103754 to 62bc224 by @dependabot in #1224
• install: allow for multiple roles and rolebindings per file by @squeed in #1218
• Allow to delete cilium pods before connectivity tests by @tklauser in #1131
• build(deps): bump google.golang.org/grpc from 1.50.1 to 1.51.0 by @dependabot in #1222
• Prepare for v0.12.8 release by @michi-covalent in #1225

Full Changelog: v0.12.7...v0.12.8