enhance: Add comprehensive .gitignore for deb-mock project

- Add mock-specific build artifacts (chroot/, mock-*, mockroot/)
- Include package build files (*.deb, *.changes, *.buildinfo)
- Add development tools (.coverage, .pytest_cache, .tox)
- Include system files (.DS_Store, Thumbs.db, ._*)
- Add temporary and backup files (*.tmp, *.bak, *.backup)
- Include local configuration overrides (config.local.yaml, .env.local)
- Add test artifacts and documentation builds
- Comprehensive coverage for Python build system project

This ensures build artifacts, chroot environments, and development
tools are properly ignored in version control.

docs/Release-Notes-Configs-41.1.md

@@ -0,0 +1,53 @@
+---
+layout: default
+title: Release Notes - Mock Configs 41.1 (and typofix 41.2)
+---
+
+## [Release Configs 41.1](https://rpm-software-management.github.io/mock/Release-Notes-Configs-41.1) - 2024-08-14
+
+
+### Mock Core Configs changes
+
+- Configuration files for Fedora 41 have been branched from Rawhide, according
+  to the [Fedora 41 Schedule](https://fedorapeople.org/groups/schedule/f-41/f-41-all-tasks.html).
+- The "early" CentOS Stream 10 + EPEL 10 configuration files have been added,
+  [issue#1421][].  These chroots only work with Fedora EPEL Koji buildroot(s).
+- Add configuration for openEuler 24.03 LTS.
+- Mock chroots for CentOS Stream 10 now use the mirrored repositories also for
+  baseos-source, baseos-debuginfo, appstream-source, appstream-debuginfo,
+  crb-source, and crb-debuginfo.
+- The CentOS 7 [is now EOL](https://www.redhat.com/en/topics/linux/centos-linux-eol)
+  and the mirroring is disabled.  Corresponding configuration files have been
+  moved to `/etc/mock/eol` and are pointing now to vault.centos.org.
+
+  Similarly, EPEL 7 [goes EOL](https://pagure.io/epel/issue/238), too.  Moving
+  EPEL 7 configuration to `/etc/mock/eol`, too.
+- The Fedora ELN ix86 config has been removed, as 32-bit multilibs are no longer
+  built for ELN.
+- Fedora Rawhide configurations, such as releasever=41 now, accept GPG keys from
+  Fedora releasever+1 (for example, 42, not yet used for RPM signatures).  This
+  change is implemented to address the typically short and unnecessary
+  inconvenience during [the Fedora branching process][issue#1338] in the future.
+- The Fedora Rawhide configuration (F41+) has been updated to use the
+  `bootstrap_image_ready = True` configuration.  The default container images are
+  [already shipped with the `dnf5-plugins` package](https://pagure.io/fedora-kiwi-descriptions/pull-request/63).
+
+  This means we use the container image "as is" to bootstrap the DNF5 stack
+  without installing any additional packages into the prepared bootstrap chroot.
+  Consequently, the bootstrap preparation is much faster (bootstrap preparation
+  basically equals the image download, if not pre-downloaded, and its subsequent
+  "extraction").
+
+#### Following contributors contributed to this release:
+
+- Daan De Meyer
+- Jakub Kadlcik
+- Jiri Kyjovsky
+- Miro Hrončok
+- nucleo
+- Robert Scheck
+- Yaakov Selkowitz
+
+Thank you!
+
+[issue#1338]: https://github.com/rpm-software-management/mock/issues/1338