config: move src/commands/config-schema.json back to src/

I think this is an oversight of moving things into commands/ module.

.github/PULL_REQUEST_TEMPLATE.md

@@ -13,5 +13,5 @@ https://github.com/martinvonz/jj/blob/main/docs/contributing.md for details.
 If applicable:
 - [ ] I have updated `CHANGELOG.md`
 - [ ] I have updated the documentation (README.md, docs/, demos/)
-- [ ] I have updated the config schema (src/commands/config-schema.json)
+- [ ] I have updated the config schema (src/config-schema.json)
 - [ ] I have added tests to cover my changes

src/commands/mod.rs

@@ -2936,7 +2936,7 @@ fn cmd_debug(
         }
         DebugCommands::ConfigSchema(_config_schema_matches) => {
             // TODO(#879): Consider generating entire schema dynamically vs. static file.
-            let buf = include_bytes!("config-schema.json");
+            let buf = include_bytes!("../config-schema.json");
             ui.stdout_formatter().write_all(buf)?;
         }
         DebugCommands::ResolveRev(resolve_matches) => {