scripts: ci: check_compliance: inclusive language fix

use allowlist terminology

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

scripts/ci/check_compliance.py

@@ -924,7 +924,7 @@ Missing SoC names or CONFIG_SOC vs soc.yml out of sync:
         # so we extract the references from each line ourselves instead.
         #
         # The regex uses word boundaries (\b) to isolate the reference, and
-        # negative lookahead to automatically whitelist the following:
+        # negative lookahead to automatically allowlist the following:
         #
         #  - ##, for token pasting (CONFIG_FOO_##X)
         #