[BUG] crashes for csproj that use Windows-1252 encoding

[Mattwmaster58]

Describe the bug
If the XML encoding is set to Windows-1252, the program will crash with the following traceback:

System.Xml.XmlException:System does not support 'Windows-1252' encoding. Line 1, position 31.
   at System.Xml.XmlTextReaderImpl.Throw(Exception e)
   at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args, Exception innerException)
   at System.Xml.XmlTextReaderImpl.Throw(String res, String arg, Exception innerException)
   at System.Xml.XmlTextReaderImpl.CheckEncoding(String newEncodingName)
   at System.Xml.XmlTextReaderImpl.ParseXmlDeclaration(Boolean isTextDecl)
   at System.Xml.XmlTextReaderImpl.Read()
   at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace)
   at System.Xml.XmlDocument.Load(XmlReader reader)
   at System.Xml.XmlDocument.Load(String filename)
   at DependenSee.ReferenceDiscoveryService.DiscoverFileReferences(String path) in D:\a\1\s\DependenSee\ReferenceDiscoveryService.cs:line 142
   at DependenSee.ReferenceDiscoveryService.Discover(String folder, DiscoveryResult result) in D:\a\1\s\DependenSee\ReferenceDiscoveryService.cs:line 88
   at DependenSee.ReferenceDiscoveryService.Discover() in D:\a\1\s\DependenSee\ReferenceDiscoveryService.cs:line 44
   at DependenSee.PowerArgsProgram.Main() in D:\a\1\s\DependenSee\PowerArgsProgram.cs:line 102
--- End of stack trace from previous location ---
   at PowerArgs.ObjectEx.InvokeMainMethod(Object o)
   at PowerArgs.Args.<>c__DisplayClass15_1.<InvokeMain>b__1()
   at PowerArgs.Args.Execute[T](Func`1 argsProcessingCode)
   at PowerArgs.Args.<>c__DisplayClass15_0.<InvokeMain>b__0(String[] a)
   at PowerArgs.REPL.DriveREPL[T](TabCompletion t, Func`2 eval, String[] args, Func`1 defaultEval)
   at PowerArgs.Args.InvokeMain(CommandLineArgumentsDefinition definition, String[] args)
   at PowerArgs.Args.InvokeMain[T](String[] args)
   at DependenSee.Program.Main(String[] args) in D:\a\1\s\DependenSee\Program.cs:line 15
-----Inner Exception----
System.ArgumentException:'Windows-1252' is not a supported encoding name. For information on defining a custom encoding, see the documentation for the Encoding.RegisterProvider method. (Parameter 'name')
   at System.Text.EncodingTable.InternalGetCodePageFromName(String name)
   at System.Text.EncodingTable.GetCodePageFromName(String name)
   at System.Text.Encoding.GetEncoding(String name)
   at System.Xml.XmlTextReaderImpl.CheckEncoding(String newEncodingName)

To Reproduce
In a .csproj:

<?xml version="1.0" encoding="Windows-1252"?>

(rest does not matter).
Run Dependensee <path>

Example VS Solution
N/A

DependenSee Command
Dependensee <path>

DependenSee Output
N/A

DependenSee Version
Package Id Version Commands

dependensee 2.2.0 DependenSee

[Mattwmaster58]

related that I could probably just copy from: https://github.com/NuKeeperDotNet/NuKeeper/pull/366/files