Just: port csharp, go, javascript and ruby to new language test definition

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

ruby/justfile

@@ -0,0 +1,7 @@
+import '../lib.just'
+
+[group('build')]
+build: (_build_dist "ruby")
+
+[group('test')]
+language-tests *EXTRA_ARGS: (_language_tests EXTRA_ARGS source_dir() 'ql/test')

ruby/ql/justfile

@@ -0,0 +1,6 @@
+import "../../lib.just"
+
+[no-cd]
+format *ARGS=".": (_format_ql ARGS)
+
+consistency_queries := source_dir() / "consistency-queries"

ruby/ql/test/justfile

@@ -0,0 +1,14 @@
+import "../justfile"
+
+base_flags := ""
+
+all_checks := default_db_checks + """\
+    --check-undefined-labels \
+    --check-unused-labels \
+    --check-repeated-labels \
+    --check-redefined-labels \
+    --check-use-before-definition \
+    --consistency-queries=""" + consistency_queries
+
+[no-cd]
+test *ARGS=".": (_codeql_test "ruby" base_flags all_checks ARGS)