chore(deps): bump @aws-cdk/toolkit-lib from 1.1.1 to 1.2.4

Bumps [@aws-cdk/toolkit-lib](https://github.com/aws/aws-cdk-cli/tree/HEAD/packages/@aws-cdk/toolkit-lib) from 1.1.1 to 1.2.4.
- [Release notes](https://github.com/aws/aws-cdk-cli/releases)
- [Commits](https://github.com/aws/aws-cdk-cli/commits/@aws-cdk/toolkit-lib@v1.2.4/packages/@aws-cdk/toolkit-lib)

---
updated-dependencies:
- dependency-name: "@aws-cdk/toolkit-lib"
  dependency-version: 1.2.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -24,7 +24,7 @@
     "execa": "^9.5.1",
     "tsx": "4.19.4",
     "strip-ansi": "^7.1.0",
-    "@aws-cdk/toolkit-lib": "1.1.1",
+    "@aws-cdk/toolkit-lib": "1.2.4",
     "minimatch": "10.0.1"
   },
   "peerDependencies": {

packages/backend-deployer/package.json

@@ -16,7 +16,7 @@
     "@aws-sdk/types": "^3.734.0"
   },
   "dependencies": {
-    "@aws-cdk/toolkit-lib": "1.1.1"
+    "@aws-cdk/toolkit-lib": "1.2.4"
   },
   "imports": {
     "#package.json": "./package.json"