[GH-19267] Spelling comments (#19268)

* spelling: comments

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/extract_plugin_tar.go

@@ -39,7 +39,7 @@ func extractTarGz(gzipStream io.Reader, dst string) error {
 			return errors.Wrap(err, "failed to read next file from archive")
 		}
 
-		// Pre-emptively check type flag to avoid reporting a misleading error in
+		// Preemptively check type flag to avoid reporting a misleading error in
 		// trying to sanitize the header name.
 		switch header.Typeflag {
 		case tar.TypeDir: