Update minimum .NET Framework Version to 4.6.2

Signed-off-by: Alexander Linne <alexander.linne@tngtech.com>

Author: alexanderlinne

ArchUnitNET.MSTestV2/ArchUnitNET.MSTestV2.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net462</TargetFrameworks>
     <IsPackable>true</IsPackable>
     <Title>ArchUnit C# MSTestV2 Extension</Title>
     <Description>MSTestV2 Extension for the C# Version of ArchUnit (see: archunit.org)</Description>

ArchUnitNET.NUnit/ArchUnitNET.NUnit.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net462</TargetFrameworks>
     <IsPackable>true</IsPackable>
     <Title>ArchUnit C# NUnit Extension</Title>
     <Description>NUnit Extension for the C# Version of ArchUnit (see: archunit.org)</Description>

ArchUnitNET.xUnit/ArchUnitNET.xUnit.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net462</TargetFrameworks>
     <IsPackable>true</IsPackable>
     <Title>ArchUnit C# xUnit Extension</Title>
     <Description>xUnit Extension for the C# Version of ArchUnit (see: archunit.org)</Description>

ArchUnitNET/ArchUnitNET.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net462</TargetFrameworks>
     <IsPackable>true</IsPackable>
     <RootNamespace>ArchUnitNET</RootNamespace>
     <PackageId>TngTech.ArchUnitNET</PackageId>