Updated sample app deployment to deploy app with dotnet9 (#413)

*Description of changes:*
Updated sample app deploy to deploy app with dotnet9

*Ensure you've run the following tests on your changes and include the
link below:*

To do so, create a `test.yml` file with `name: Test` and workflow
description to test your changes, then remove the file for your PR. Link
your test run in your PR description. This process is a short term
solution while we work on creating a staging environment for testing.

NOTE: TESTS RUNNING ON A SINGLE EKS CLUSTER CANNOT BE RUN IN PARALLEL.
See the
[needs](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idneeds)
keyword to run tests in succession.
- Run Java EKS on `e2e-playground` in us-east-1 and eu-central-2
- Run Python EKS on `e2e-playground` in us-east-1 and eu-central-2
- Run metric limiter on EKS cluster `e2e-playground` in us-east-1 and
eu-central-2
- Run EC2 tests in all regions
- Run K8s on a separate K8s cluster (check IAD test account for master
node endpoints; these will change as we create and destroy clusters for
OS patching)

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

Author: AsakerMohd

.github/workflows/dotnet-ec2-adot-sigv4-test.yml

@@ -12,7 +12,7 @@ on:
         required: true
         type: string
       dotnet-version:
-        description: "Currently support version 6.0, 8.0"
+        description: "Currently support version 8.0, 9.0"
         required: false
         type: string
         default: '8.0'

.github/workflows/dotnet-ec2-default-test.yml

@@ -19,7 +19,7 @@ on:
         required: true
         type: string
       dotnet-version:
-        description: "Currently support version 6.0, 8.0"
+        description: "Currently support version 8.0, 9.0"
         required: false
         type: string
         default: '8.0'

.github/workflows/dotnet-sample-app-s3-deploy.yml

@@ -18,7 +18,7 @@ jobs:
                       'ap-southeast-2','ap-southeast-3','ap-southeast-4','ca-central-1','eu-central-1','eu-central-2','eu-north-1',
                       'eu-south-1','eu-south-2','eu-west-1','eu-west-2','eu-west-3','il-central-1','me-central-1','me-south-1', 'sa-east-1',
                       'us-east-1','us-east-2', 'us-west-1', 'us-west-2' ]
-        dotnet-version: [ '6.0', '8.0' ]
+        dotnet-version: [ '8.0', '9.0' ]
     runs-on: ubuntu-latest
     env:
       DEFAULT_VERSION: '8.0'