chore(deps): update dependency vulture to v2.12

Author: renovate[bot]

pyproject.toml

@@ -86,7 +86,7 @@ dev = [
   # profiling
   "pyinstrument",
   # dead code detection
-  "vulture==2.11",
+  "vulture==2.12",
   "dead==1.5.2",
   # other optional dependencies
   "opencv-python >= 4.0.0, < 5.0.0",