chore: update issue-label-assign.yml to add aws-location-alpha (#30687)

### Issue # (if applicable) N/A

### Reason for this change
Update issue-label-assign.yml to add `aws-location-alpha`.

### Description of changes
Update issue-label-assign.yml to add `aws-location-alpha`.

### Description of how you validated changes

### 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: ashishdhingra

.github/workflows/issue-label-assign.yml

@@ -58,7 +58,7 @@ jobs:
 env:
  OSDS_DEVS: >
            {
-             "assignees":["indrora","khushail","hunhsieh"]
+             "assignees":["ashishdhingra","khushail","hunhsieh"]
            }
 
  AREA_AFFIXES: >
@@ -283,5 +283,6 @@ env:
             {"area":"@aws-cdk/triggers","keywords":["trigger","triggers"],"labels":["@aws-cdk/triggers"]},
             {"area":"@aws-cdk/integ-tests","keywords":["integ-tests", "integ"],"labels":["@aws-cdk/integ-tests"]},
             {"area":"@aws-cdk/integ-runner","keywords":["integ-runner"],"labels":["@aws-cdk/integ-runner"]},
-            {"area":"@aws-cdk/app-staging-synthesizer-alpha", "keywords":["app-staging-synthesizer", "app-staging-synthesizer-alpha"],"labels":["@aws-cdk/app-staging-synthesizer-alpha"]}
+            {"area":"@aws-cdk/app-staging-synthesizer-alpha", "keywords":["app-staging-synthesizer", "app-staging-synthesizer-alpha"],"labels":["@aws-cdk/app-staging-synthesizer-alpha"]},
+            {"area":"@aws-cdk/aws-location-alpha", "keywords":["aws-location", "aws-location-alpha"],"labels":["@aws-cdk/aws-location-alpha"]}
           ]