fixup! install 7/n: answerfile generation

No functional impact on the test, but this ghost of an old answerfile-dict
convention causes issues to upcoming type hints.

Author: ydirson

tests/install/test_fixtures.py

@@ -7,7 +7,7 @@
 # of the test in one run
 @pytest.mark.answerfile(lambda: AnswerFile("INSTALL").top_append(
     {"TAG": "source", "type": "local"},
-    {"TAG": "primary-disk", "text": "nvme0n1"},
+    {"TAG": "primary-disk", "CONTENTS": "nvme0n1"},
 ))
 @pytest.mark.parametrize("parm", [
     1,