Python: Add missing `options` files

I could not for the life of me figure out why the tests were failing, when they were working for me locally 🤦
2023-03-21 10:24:28 +01:00 · 2023-03-21 10:24:28 +01:00 · e90559b86d
--- a/python/ql/test/experimental/dataflow/coverage-py2/options
+++ b/python/ql/test/experimental/dataflow/coverage-py2/options
@ -0,0 +1 @@
+semmle-extractor-options: --max-import-depth=1 --lang=2
--- a/python/ql/test/experimental/dataflow/coverage-py3/options
+++ b/python/ql/test/experimental/dataflow/coverage-py3/options
@ -0,0 +1 @@
+semmle-extractor-options: --max-import-depth=1 --lang=3
				`@ -0,0 +1 @@`
				`semmle-extractor-options: --max-import-depth=1 --lang=2`