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.

testing-farm/plans/behave.fmf

@@ -0,0 +1,12 @@
+---
+summary: run the behave tests in Fedora Testing Farm
+discover:
+  - how: fmf
+    filter: "tag: behave"
+
+prepare:
+  - how: ansible
+    playbook: mock/integration-tests/setup-playbook/play-tf.yml
+
+execute:
+  - how: tmt

testing-farm/plans/old-testsuite.fmf

@@ -0,0 +1,12 @@
+---
+summary: run the old testsuite in Fedora Testing Farm
+discover:
+  - how: fmf
+    filter: "tag: old_testsuite"
+
+prepare:
+  - how: ansible
+    playbook: mock/integration-tests/setup-playbook/play-tf.yml
+
+execute:
+  - how: tmt