Make sure the binary is the system PowerShell 5.1

Sometimes a different version of the PowerShell binary `powershell.exe`
may take precedence in environment variable `Path` and may cause the
script to fail.

imagepaste/clipboard/windows/windows.py

@@ -91,8 +91,17 @@ def get_powershell_args(script: str) -> list[str]:
         Returns:
             list[str]: A list of PowerShell arguments for operating a process.
         """
-        POWERSHELL = [
-            "powershell",
+        from os import getenv
+        from os.path import join
+
+        powershell_args = [
+            join(
+                getenv("SystemRoot"),
+                "System32",
+                "WindowsPowerShell",
+                "v1.0",
+                "powershell.exe",
+            ),
             "-NoProfile",
             "-NoLogo",
             "-NonInteractive",
@@ -106,5 +115,5 @@ def get_powershell_args(script: str) -> list[str]:
             "[System.Text.Encoding]::UTF8\n"
             "$PSDefaultParameterValues['*:Encoding'] = 'utf8'\n" + script
         )
-        args = POWERSHELL + ["& { " + script + " }"]
+        args = powershell_args + ["& { " + script + " }"]
         return args