fix: Fix error formatting of path

%q does not only quote the variable's content, but also makes it 'safe'.
It's not clearly defined in the golang docs, but backslashes are escaped as well.
To properly render the error, we need to quote the string ourselves and print the string using %s

pkg/config/template/filebased.go

@@ -71,7 +71,7 @@ func NewFileTemplate(fs afero.Fs, path string) (Template, error) {
 	if exists, err := afero.Exists(fs, sanitizedPath); err != nil {
 		return nil, fmt.Errorf("failed to load template: %w", err)
 	} else if !exists {
-		return nil, fmt.Errorf("template file %q does not exist", sanitizedPath)
+		return nil, fmt.Errorf(`template file "%s" does not exist`, sanitizedPath)
 	}
 
 	template := FileBasedTemplate{