Release v4.6.1

- Back-port previous GitHub release notes to `.github/releases/`
- Fix SUSE and Rocky Linux 8 builds

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

.github/releases/v4.5.7.md

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+Warewulf v4.5.7 fixes the ability to override overlay files configured in profiles with overlays configured per-node; fixes a template processing bug bug in development-time overlay rendering; and improves the preview dracut-based boot process to better support a "secure" boot process.
+
+It also adds the ability to temporarily copy files into containers for possible modification during `wwctl container exec` and `wwctl container shell.`
+
+**Dracut booting in v4.5.7 breaks compatibility with earlier versions of `warewulf-dracut`.** To continue using dracut booting with Warewulf v4.5.7, update `warewulf-dracut` in the container image and re-build an initramfs inside the container. ([docs][1])
+
+[1]: https://warewulf.org/docs/v4.5.x/contents/boot-management.html#booting-with-dracut
+
+Contributors:
+
+* Josh Burks (Arizona State University)
+* Jonathon Anderson (CIQ)
+* Elmar Pruessee (National Jewish Health)
+* Christian Goll (Suse)
+* "Jason" Xu Yang (CIQ)
+* Tobias Poschwatta (Zuse Institute Berlin)
+
+The full changelog is below:
+
+# Added
+
+- Added option for wwclient port number. #1349
+- Additional helper directions during syncuser conflict. #1359
+- Add `:copy` suffix to `wwctl container exec --bind` to temporarily copy files into the node image. #1365
+
+# Changed
+
+- Added a link to an example SELinux-enabled node image in documentation. #1305
+- Refine error handling for `wwctl configure`. #1273
+- Updated dracut guidance for building initramfs. #1369
+
+# Fixed
+
+- Fixed application of node overlays such that they override overlapping files from profile overlays. #1259
+- Prevent overlays from being improperly used as format strings during `wwctl overlay show --render`. #1363
+- Fix dracut booting with secure mode. #1261