load_or_install: trust load() result when no_cache is set

Devin Review caught that ``if loaded.is_valid and not no_cache:`` applied the
caller's ``no_cache`` flag to the value we just got back from ``load()``.
``load()`` already honours the flag internally, so a valid result is fresh
regardless — the ``and not no_cache`` guard was forcing a redundant
``install()`` whenever ``no_cache=True`` even though the binary already
resolved. Drop the redundant condition.

Author: claude

abxpkg/binary.py

@@ -473,7 +473,9 @@ def load_or_install(
             )
         except BinaryLoadError:
             loaded = self
-        if loaded.is_valid and not no_cache:
+        # ``load()`` was already called with the caller's ``no_cache`` flag, so
+        # a valid result is already fresh — trust it and skip ``install()``.
+        if loaded.is_valid:
             return loaded
         return self.install(
             binproviders=binproviders,