script, test: add missing python type annotations

Fix warnings for these files when ./test/lint/lint-python.py is run using
mypy 0.991 (released 11/2022) and later:

"By default the bodies of untyped functions are not checked, consider using
--check-untyped-defs [annotation-unchecked]"

For details, see:

https://mypy-lang.blogspot.com/2022/11/mypy-0990-released.html

contrib/devtools/test-security-check.py

@@ -28,7 +28,7 @@ def clean_files(source, executable):
     os.remove(source)
     os.remove(executable)
 
-def call_security_check(cc, source, executable, options):
+def call_security_check(cc: str, source: str, executable: str, options) -> tuple:
     # This should behave the same as AC_TRY_LINK, so arrange well-known flags
     # in the same order as autoconf would.
     #