fix[tool]: star option in outputSelection (#4094)

vyper will accept either `"*"` or `["*"]` for `outputSelection`, but
some verifiers expect it to always be a list. make `solc_json` output
choose the common formatting.

vyper/compiler/output_bundle.py

@@ -194,7 +194,7 @@ def write_integrity(self, integrity_sum: str):
 
     def write_compilation_target(self, targets: list[str]):
         for target in targets:
-            self._output["settings"]["outputSelection"][target] = "*"
+            self._output["settings"]["outputSelection"][target] = ["*"]
 
     def write_version(self, version):
         self._output["compiler_version"] = version