fix(core): typo (#34123)

### Issue # (if applicable)

None

### Reason for this change

Fix typo

### Description of changes

`concatentation` → `concatenation`

### Describe any new or updated permissions being added

None

### Description of how you validated changes

None

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: eggplants

Diff for: packages/aws-cdk-lib/core/lib/token.ts

@@ -144,7 +144,7 @@ export class Tokenization {
   public static reverseCompleteString(s: string): IResolvable | undefined {
     const fragments = Tokenization.reverseString(s);
     if (fragments.length !== 1) {
-      throw new Error(`Tokenzation.reverseCompleteString: argument must not be a concatentation, got '${s}'`);
+      throw new Error(`Tokenzation.reverseCompleteString: argument must not be a concatenation, got '${s}'`);
     }
     return fragments.firstToken;
   }