fix: modernize apache2 ci baseline

[damacus]

Summary

• pin apache2 CI to sous-chefs 6.0.0 reusable workflows/actions
• replace legacy Chef install actions and fix actionlint final job output
• sync supported platform matrices and move openSUSE Leap testing to 16.0
• remove InSpec profile supports filters so Dokken runs cannot silently skip

Verification

• cookstyle
• chef exec rspec --format documentation
• berks install
• actionlint
• yamllint .github/workflows/*.yml kitchen.yml kitchen.dokken.yml kitchen.global.yml kitchen.exec.yml .yamllint .markdownlint-cli2.yaml
• markdownlint-cli2 README.md documentation/*.md TESTING.md LIMITATIONS.md UPGRADING.md CHANGELOG.md
• git diff --check
• KITCHEN_LOCAL_YAML=kitchen.dokken.yml kitchen test default-ubuntu-2404 --destroy=always

[github-actions]

Slowest examples

Top 10 slowest examples (4.26 seconds, 17.05% of total time)

Example	Description	Time in seconds
spec/resources/mod_wsgi_spec.rb:60	apache2_mod_wsgi Enable WSGI module with custom properties is expected to install package "mod_wsgitest"	0.60611
spec/resources/mod_auth_cas_spec.rb:57	apache2_mod_auth_cas ubuntu is expected to render file "/etc/apache2/mods-available/auth_cas.conf"	0.55027
spec/resources/mod_spec.rb:143	apache2_install mod_mime outputs template correctly	0.54451
spec/resources/mod_spec.rb:217	apache2_install mod_dir outputs template correctly	0.53727
spec/resources/conf_spec.rb:22	apache2_install install an apache2_module with default properties Creates a LoadModule file with the correct path	0.45458
spec/libraries/log_spec.rb:71	#default_access_log with Debian is expected to write log "access.log"	0.35582
spec/libraries/mpm_support_spec.rb:39	#mpm_support freebsd is expected to write log "prefork"	0.34102
spec/libraries/log_spec.rb:30	#default_error_log with Debian is expected to write log "error.log"	0.33544
spec/libraries/lib_dir_spec.rb:61	#lib_dir x86 fedora is expected to write log "/usr/lib/httpd"	0.28346
spec/libraries/default_modules_spec.rb:25	#default_modules systemd amazon is expected to write log "status, alias, auth_basic, authn_core, authn_file, authz_core, authz_groupfile, authz_host, authz_user, autoindex, deflate, dir, env, mime, negotiation, setenvif, log_config, logio, unixd, systemd"	0.25799