preflight: accept lower case drive letter in daemon posh script check

in the preflight check for existence of the powershell script used for
starting the daemon, we check that the current crc executable path  is
present

when crc is executed by the extension, the current executable path   is
returned with a small case drive letter whereas crc directly invoked by
a user returns a path with upper case drive letter and fails this check

with this commit we are not matching the whole content of the file but
only checking if either lower case or upper case varient of the   path
exists in the script

pkg/crc/preflight/preflight_daemon_task_check_windows.go

@@ -8,6 +8,7 @@ import (
 	"os"
 	"os/user"
 	"path/filepath"
+	"regexp"
 	"strings"
 
 	"github.com/crc-org/crc/v2/pkg/crc/constants"
@@ -217,9 +218,25 @@ func getDaemonPoshScriptContent() []byte {
 func checkDaemonPoshScript() error {
 	if exists := crcos.FileExists(daemonPoshScriptPath); exists {
 		// check the script contains the path to the current executable
-		if err := crcos.FileContentMatches(daemonPoshScriptPath, getDaemonPoshScriptContent()); err == nil {
-			return nil
+		binPath, err := os.Executable()
+		if err != nil {
+			return fmt.Errorf("Unable to find the crc executable: %w", err)
+		}
+		binPath = strings.ReplaceAll(binPath, `\`, `\\`)
+		regx, err := regexp.Compile(fmt.Sprintf("[a-zA-Z]:\\%s", binPath[3:]))
+		if err != nil {
+			return fmt.Errorf("Error while compiling regex for crc exe path: %w", err)
 		}
+		f, err := os.ReadFile(daemonPoshScriptPath)
+		if err != nil {
+			return fmt.Errorf("Unable to read script file: %w", err)
+		}
+		match := regx.Find(f)
+		if len(match) == 0 {
+			return fmt.Errorf("crc executable path is not present in script")
+		}
+		logging.Debugf("Found crc executable path in script: %s", string(match))
+		return nil
 	}
 	return fmt.Errorf("Powershell script for running the daemon does not exist")
 }