Update dotnet-build.yml (#351)

Renamed to "Build & Test .NET Deployment" for clarity

## Purpose
<!-- Describe the intention of the changes being proposed. What problem
does it solve or functionality does it add? -->
* ... Updated the name property in the yaml file for clarity.

## Does this introduce a breaking change?
<!-- Mark one with an "x". -->
```
[ ] Yes
[ x] No
```

## Pull Request Type
What kind of change does this Pull Request introduce?

<!-- Please check the one that applies to this PR using "x". -->
```
[ ] Bugfix
[ ] Feature
[ x] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:
```

## How to Test
*  Get the code

```
git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install
```

* Test the code
<!-- Add steps to run the tests suite and/or manually test -->
```
```

## What to Check
Verify that the following are valid
* ...

## Other Information
<!-- Add any other helpful information that may be needed here. -->

Co-authored-by: Ami Schreiber <amschrei@microsoft.com>

Author: shribr

.github/workflows/dotnet-build.yml

@@ -1,4 +1,4 @@
-name: build & test
+name: Build & Test .NET Deployment
 
 on:
   push:
@@ -22,4 +22,4 @@ jobs:
     - name: Build
       run: dotnet build ./app/app.sln -c Release
     - name: Test
-      run: dotnet test ./app/app.sln --verbosity normal -c Release
+      run: dotnet test ./app/app.sln --verbosity normal -c Release