Fix README contributor note and xz dependency marking

Changelog for 0.11.106:

• PR #1262 Add crc and xz support by @alexellis

Commits
7d913f2 Fix README contributor note and xz dependency marking by @alexellis
4f629ef Update AGENTS.md to document bz2 and tar.xz support by @alexellis
48e22cb Fix duplicate tar.xz checks and add OS guard for CRC by @alexellis
6497353 Add CRC tool for OpenShift local development by @alexellis
79eca88 Add tar.xz decompression support via ulikunitz/xz by @alexellis
0e2bb85 Fix duplicate bz2 check and restore contributor note by @alexellis
ade18ce Add restic backup tool with bzip2 decompression support by @alexellis

Changes: 0.11.105...0.11.106

Generated by Derek