[Instrumentation.Process] Replace .NET 6 target with .NET 8 for test project (open-telemetry#2153)

Co-authored-by: joegoldman2 <[email protected]>
Co-authored-by: Mikel Blanchard <[email protected]>

Author: joegoldman2

src/OpenTelemetry.Instrumentation.Process/OpenTelemetry.Instrumentation.Process.csproj

@@ -1,13 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
+
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0</TargetFrameworks>
-    <Description>dotnet process instrumentation for OpenTelemetry .NET</Description>
+    <TargetFrameworks>$(NetStandardMinimumSupportedVersion)</TargetFrameworks>
+    <Description>dotnet process instrumentation for OpenTelemetry .NET.</Description>
     <PackageTags>$(PackageTags);process</PackageTags>
     <MinVerTagPrefix>Instrumentation.Process-</MinVerTagPrefix>
   </PropertyGroup>
 
-  <!--Do not run Package Baseline Validation as this package has never released a stable version.
-  Remove this property once we have released a stable version and add PackageValidationBaselineVersion property.-->
+  <!-- Do not run Package Baseline Validation as this package has never released a stable version.
+  Remove this property once we have released a stable version and add PackageValidationBaselineVersion property. -->
   <PropertyGroup>
     <DisablePackageBaselineValidation>true</DisablePackageBaselineValidation>
   </PropertyGroup>

test/OpenTelemetry.Instrumentation.Process.Tests/OpenTelemetry.Instrumentation.Process.Tests.csproj

@@ -2,8 +2,8 @@
 
   <PropertyGroup>
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
-    <TargetFrameworks>$(SupportedNetTargets)</TargetFrameworks>
-    <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
+    <TargetFrameworks>$(SupportedNetTargetsWithoutNet6)</TargetFrameworks>
+    <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);$(NetFrameworkMinimumSupportedVersion)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>