Update instructions and config for required local dotnet version

[kachawla]

Description

DE was updated to .net 8 in https://github.com/radius-project/deployment-engine/pull/394. Similar version is needed to run control plane locally, updating instructions and launch.json to reflect that as the setup is broken with current instructions due to version mismatch.

Validated updated config locally.

Type of change

• This pull request is a minor refactor, code cleanup, test improvement, or other maintenance task and doesn't change the functionality of Radius (issue link optional).

Fixes: #issue_number

Contributor checklist

Please verify that the PR meets the following requirements, where applicable:

• [N/A] An overview of proposed schema changes is included in a linked GitHub issue.
• [N/A] A design document PR is created in the design-notes repository, if new APIs are being introduced.
• [N/A] If applicable, design document has been reviewed and approved by Radius maintainers/approvers.
• [N/A] A PR for the samples repository is created, if existing samples are affected by the changes in this PR.
• [N/A] A PR for the documentation repository is created, if the changes in this PR affect the documentation or any user facing updates are made.
• [N/A] A PR for the recipes repository is created, if existing recipes are affected by the changes in this PR.

[radius-functional-tests]

Radius functional test overview

🔍 Go to test action run

Name	Value
Repository	kachawla/radius
Commit ref	4c0cc33
Unique ID	funcf980d9e61c
Image tag	pr-funcf980d9e61c

Click here to see the list of tools in the current test run

• gotestsum 1.12.0
• KinD: v0.20.0
• Dapr:
• Azure KeyVault CSI driver: 1.4.2
• Azure Workload identity webhook: 1.3.0
• Bicep recipe location ghcr.io/radius-project/dev/test/testrecipes/test-bicep-recipes/<name>:pr-funcf980d9e61c
• Terraform recipe location http://tf-module-server.radius-test-tf-module-server.svc.cluster.local/<name>.zip (in cluster)
• applications-rp test image location: ghcr.io/radius-project/dev/applications-rp:pr-funcf980d9e61c
• dynamic-rp test image location: ghcr.io/radius-project/dev/dynamic-rp:pr-funcf980d9e61c
• controller test image location: ghcr.io/radius-project/dev/controller:pr-funcf980d9e61c
• ucp test image location: ghcr.io/radius-project/dev/ucpd:pr-funcf980d9e61c
• deployment-engine test image location: ghcr.io/radius-project/deployment-engine:latest

Test Status

⌛ Building Radius and pushing container images for functional tests...
✅ Container images build succeeded
⌛ Publishing Bicep Recipes for functional tests...
✅ Recipe publishing succeeded
⌛ Starting ucp-cloud functional tests...
⌛ Starting corerp-cloud functional tests...
✅ ucp-cloud functional tests succeeded
❌ corerp-cloud functional test failed. Please check the logs for more details
⌛ Starting corerp-cloud functional tests...
✅ corerp-cloud functional tests succeeded

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.75%. Comparing base (9fcb182) to head (c1074c3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8213   +/-   ##
=======================================
  Coverage   59.75%   59.75%           
=======================================
  Files         590      590           
  Lines       39487    39487           
=======================================
+ Hits        23594    23597    +3     
+ Misses      14148    14146    -2     
+ Partials     1745     1744    -1     

☔ View full report in Codecov by Sentry.
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[radius-functional-tests]

Radius functional test overview

🔍 Go to test action run

Name	Value
Repository	kachawla/radius
Commit ref	c1074c3
Unique ID	funcf7da35f0d1
Image tag	pr-funcf7da35f0d1

Click here to see the list of tools in the current test run

• gotestsum 1.12.0
• KinD: v0.20.0
• Dapr:
• Azure KeyVault CSI driver: 1.4.2
• Azure Workload identity webhook: 1.3.0
• Bicep recipe location ghcr.io/radius-project/dev/test/testrecipes/test-bicep-recipes/<name>:pr-funcf7da35f0d1
• Terraform recipe location http://tf-module-server.radius-test-tf-module-server.svc.cluster.local/<name>.zip (in cluster)
• applications-rp test image location: ghcr.io/radius-project/dev/applications-rp:pr-funcf7da35f0d1
• dynamic-rp test image location: ghcr.io/radius-project/dev/dynamic-rp:pr-funcf7da35f0d1
• controller test image location: ghcr.io/radius-project/dev/controller:pr-funcf7da35f0d1
• ucp test image location: ghcr.io/radius-project/dev/ucpd:pr-funcf7da35f0d1
• deployment-engine test image location: ghcr.io/radius-project/deployment-engine:latest

Test Status

⌛ Building Radius and pushing container images for functional tests...
✅ Container images build succeeded
⌛ Publishing Bicep Recipes for functional tests...
✅ Recipe publishing succeeded
⌛ Starting ucp-cloud functional tests...
⌛ Starting corerp-cloud functional tests...
✅ ucp-cloud functional tests succeeded
✅ corerp-cloud functional tests succeeded