Don't log OPTIONS request at INFO (#8049)

changelog.d/8049.misc

+Log `OPTIONS` requests at `DEBUG` rather than `INFO` level to reduce amount logged at `INFO`.

synapse/http/site.py

@@ -319,7 +319,13 @@ class SynapseRequest(Request):
     def _should_log_request(self) -> bool:
         """Whether we should log at INFO that we processed the request.
         """
-        return self.path != b"/health"
+        if self.path == b"/health":
+            return False
+
+        if self.method == b"OPTIONS":
+            return False
+
+        return True
 
 
 class XForwardedForRequest(SynapseRequest):