Onboard to CPM, disable lock files (#17722)

Onboard to [Central Package
Management](https://learn.microsoft.com/en-us/nuget/consume-packages/central-package-management),
disable NuGet lock files
###### Microsoft Reviewers: [Open in
CodeFlow](https://microsoft.github.io/open-pr/?codeflow=https://github.com/Azure/bicep/pull/17722)

Author: anthony-c-martin

src/Bicep.Cli.IntegrationTests/Bicep.Cli.IntegrationTests.csproj

@@ -11,8 +11,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="$(FluentAssertionsVersion)" />
-    <PackageReference Include="MSTest" Version="$(MSTestVersion)" />
+    <PackageReference Include="FluentAssertions" />
+    <PackageReference Include="MSTest" />
   </ItemGroup>
 
   <ItemGroup>
@@ -23,6 +23,6 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Update="Nerdbank.GitVersioning" Version="3.7.112" />
+    <PackageReference Update="Nerdbank.GitVersioning" />
   </ItemGroup>
 </Project>

src/Bicep.Cli.IntegrationTests/packages.lock.json

@@ -29,11 +29,11 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="NuGet.CommandLine" Version="6.6.2">
+    <PackageReference Include="NuGet.CommandLine">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Azure.Deployments.Internal.GenerateNotice" Version="$(GenerateNoticePackageVersion)" />
+    <PackageReference Include="Azure.Deployments.Internal.GenerateNotice" />
   </ItemGroup>
 
   <ItemGroup>

src/Bicep.Cli.Nuget/nuget.proj

@@ -6,9 +6,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="FluentAssertions" Version="$(FluentAssertionsVersion)" />
-    <PackageReference Include="MSTest" Version="$(MSTestVersion)" />
+    <PackageReference Include="Moq" />
+    <PackageReference Include="FluentAssertions" />
+    <PackageReference Include="MSTest" />
   </ItemGroup>
 
   <ItemGroup>
@@ -17,10 +17,10 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Update="Nerdbank.GitVersioning" Version="3.7.112" />
+    <PackageReference Update="Nerdbank.GitVersioning" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="Helpers\" />
+  <ItemGroup>
+    <Folder Include="Helpers\" />
   </ItemGroup>
 </Project>