chore(ci): remove the redundant exact-test runner entry

The workflow action-pinning gate now discovers this runner through its explicit command, so Knip no longer needs a duplicate manual entry. Preserve its normal unused-code checks.

knip.json

@@ -10,7 +10,6 @@
     "scripts/verify/fridaBindingsCompatibility.ts",
     "scripts/verify/termux/browser.mjs",
     "scripts/verify-real-ghidra-noreturn.mjs",
-    "scripts/run-exact-tests.mjs",
     "tests/processOwnershipRunner.ts"
   ],
   "project": ["src/**/*.ts", "tests/**/*.ts", "scripts/**/*.mjs"],