Add psm to the crate whitelist

Author: oli-obk

src/tools/tidy/src/deps.rs

@@ -131,6 +131,7 @@ const WHITELIST: &[&str] = &[
     "polonius-engine",
     "ppv-lite86",
     "proc-macro2",
+    "psm",
     "punycode",
     "quick-error",
     "quote",
@@ -160,6 +161,7 @@ const WHITELIST: &[&str] = &[
     "sha-1",
     "smallvec",
     "stable_deref_trait",
+    "stacker",
     "syn",
     "synstructure",
     "tempfile",