counter conversion: continue upon error

Change-Id: I0b9670cc43717e5e6e9d666d1396b9f319266df6

cmk/update_config/plugins/actions/counters_conversion.py

@@ -46,11 +46,17 @@ def convert_counter_files(counters_path: Path, logger: Logger) -> None:
                 continue
 
             logger.debug(msg_temp, "converting", f)
-            f.write_text(
-                json.dumps(
-                    [(k, repr(v)) for k, v in ast.literal_eval(content).items()],
+            try:
+                f.write_text(
+                    json.dumps(
+                        [(k, repr(v)) for k, v in ast.literal_eval(content).items()],
+                    )
                 )
-            )
+            except Exception as exc:
+                # We've seen this conversion fail upon what seemed to be partially written files.
+                # After the fact, we've never seen any traces of them.
+                # At least continue with all the other files.
+                logger.warning(msg_temp, f"failed ({exc})", f)
 
 
 update_action_registry.register(