fix: repair workflow actionlint failures

[damacus]

Summary

• Fix GitHub Actions workflow syntax/static lint failures reported by actionlint.
• Remove invalid debug output, stale matrix entries, duplicate matrix values, or conflict markers as applicable.

Verification

• actionlint -no-color -oneline
• yq e '.' .github/workflows/*.yml

[github-actions]

Slowest examples

Top 10 slowest examples (0.01 seconds, 64.08% of total time)

Example	Description	Time in seconds
spec/libraries/certificate_helpers_spec.rb:15	Java::Cookbook::CertificateHelpers#default_truststore_path Java 9 returns the correct path	0.00679
spec/libraries/corretto_helpers_spec.rb:79	Java::Cookbook::CorrettoHelpers#default_bin_cmds Corretto 11 returns the correct bin command array	0.00235
spec/libraries/corretto_helpers_spec.rb:20	Java::Cookbook::CorrettoHelpers#default_corretto_url Corretto 11 x64 returns the correct URL	0.00122
spec/libraries/openjdk_helpers_spec.rb:32	Java::Cookbook::OpenJdkHelpers#default_openjdk_url Invalid OpenJDK version should raise an error	0.00047
spec/libraries/corretto_helpers_spec.rb:38	Java::Cookbook::CorrettoHelpers#default_corretto_url Corretto 18 x64 returns the correct URL	0.00041
spec/libraries/corretto_helpers_spec.rb:113	Java::Cookbook::CorrettoHelpers#default_bin_cmds #corretto_sub_dir No full_version passed for Corretto 11 x64 returns the default directory value for Corrretto 11 x64	0.00039
spec/libraries/corretto_helpers_spec.rb:149	Java::Cookbook::CorrettoHelpers#default_bin_cmds #corretto_sub_dir No full_version passed for Corretto 18 x64 returns the default directory value for Corrretto 18 x64	0.00036
spec/libraries/openjdk_helpers_spec.rb:134	Java::Cookbook::OpenJdkHelpers#default_openjdk_install_method Debian 11 OpenJDK 11 should default to a package install	0.00036
spec/libraries/corretto_helpers_spec.rb:65	Java::Cookbook::CorrettoHelpers#default_corretto_url Corretto 18 aarch64 returns the correct URL	0.00035
spec/libraries/openjdk_helpers_spec.rb:78	Java::Cookbook::OpenJdkHelpers#default_openjdk_install_method Debian 9 OpenJDK 8 should default to a package install	0.00035