fix: use the correct env var for this extractor

Author: kevinvandervlist

tools/pre-finalize.cmd

@@ -9,6 +9,6 @@ type NUL && "%CODEQL_DIST%\codeql" database index-files ^
     --size-limit=5m ^
     --language yaml ^
     -- ^
-    "%CODEQL_EXTRACTOR_QL_WIP_DATABASE%"
+    "%CODEQL_EXTRACTOR_IAC_WIP_DATABASE%"
 
 exit /b %ERRORLEVEL%