Update paths pointing to tests/data_files

These now point to framework/data_files instead.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/scripts/ci.requirements.txt b/scripts/ci.requirements.txt
index 69c2db0..d21aa27 100644
--- a/scripts/ci.requirements.txt
+++ b/scripts/ci.requirements.txt
@@ -19,6 +19,6 @@
 # to run audit-validity-dates.py on Python >=3.6.
 cryptography # >= 35.0.0
 
-# For building `tests/data_files/server9-bad-saltlen.crt` and check python
+# For building `framework/data_files/server9-bad-saltlen.crt` and check python
 # files.
 asn1crypto