fix(rspack): remove unnecessary required properties in schema validation (#28796)

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## Current Behavior
<!-- This is the behavior we have today -->
The `@nx/rspack:rspack` executor had listed other properties as required
in the schema that could have been set by the rspack config.



## Expected Behavior
<!-- This is the behavior we should expect with the changes in this PR
-->
Make those properties optional and add validation after config is
resolved

## Related Issue(s)
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merged. -->

Fixes #

docs/generated/packages/rspack/executors/rspack.json

@@ -155,7 +155,7 @@
         "description": "Generates a `package.json` and pruned lock file with the project's `node_module` dependencies populated for installing in a container. If a `package.json` exists in the project's directory, it will be reused with dependencies populated."
       }
     },
-    "required": ["outputPath", "tsConfig", "rspackConfig"],
+    "required": ["rspackConfig"],
     "definitions": {
       "assetPattern": {
         "oneOf": [

packages/rspack/src/executors/rspack/schema.d.ts

@@ -4,9 +4,9 @@ export interface RspackExecutorSchema {
   target?: 'web' | 'node';
   main?: string;
   index?: string;
-  tsConfig: string;
+  tsConfig?: string;
   typeCheck?: boolean;
-  outputPath: string;
+  outputPath?: string;
   outputFileName?: string;
   indexHtml?: string;
   mode?: Mode;

packages/rspack/src/executors/rspack/schema.json

@@ -133,7 +133,7 @@
       "description": "Generates a `package.json` and pruned lock file with the project's `node_module` dependencies populated for installing in a container. If a `package.json` exists in the project's directory, it will be reused with dependencies populated."
     }
   },
-  "required": ["outputPath", "tsConfig", "rspackConfig"],
+  "required": ["rspackConfig"],
   "definitions": {
     "assetPattern": {
       "oneOf": [