Port integration tests to pytest.

ruby/ql/integration-tests/all-platforms/diagnostics/syntax-error/test.py

@@ -1,7 +1,2 @@
-import os
-from create_database_utils import *
-from diagnostics_test_utils import *
-
-run_codeql_database_create([], lang="ruby", runFunction = runSuccessfully, db = None)
-
-check_diagnostics()
+def test(codeql, ruby):
+    codeql.database.create()

ruby/ql/integration-tests/all-platforms/diagnostics/unknown-encoding/diagnostics.expected

@@ -16,4 +16,4 @@
   "visibility": {
     "statusPage": true
   }
-}
+}

ruby/ql/integration-tests/all-platforms/diagnostics/unknown-encoding/test.py

@@ -1,7 +1,2 @@
-import os
-from create_database_utils import *
-from diagnostics_test_utils import *
-
-run_codeql_database_create([], lang="ruby", runFunction = runSuccessfully, db = None)
-
-check_diagnostics()
+def test(codeql, ruby):
+    codeql.database.create()

ruby/ql/integration-tests/all-platforms/qlpack.yml

@@ -1,4 +0,0 @@
-dependencies:
-  codeql/ruby-all: '*'
-  codeql/ruby-queries: '*'
-warnOnImplicitThis: true

ruby/ql/integration-tests/legacy

@@ -1 +0,0 @@
-These tests are still run with the legacy test runner