Exclude file permissions line from gosec linting

The [gosec linter][1] warns by default on
[file permissions above 0600][2]. We need the permissions to be 0644 for
this line (because it has to be written to), so we exclude it from
linting.

[1]: https://github.com/securego/gosec
[2]: securego/gosec#107

internal/github/action.go

@@ -127,7 +127,7 @@ func (a *Action) pullRequestNumber() int {
 func (a *Action) outputResult(result string) {
 	labelCheckOutput := fmt.Sprintf("label_check=%s", result)
 	gitHubOutputFileName := filepath.Clean(os.Getenv("GITHUB_OUTPUT"))
-	githubOutputFile, err := os.OpenFile(gitHubOutputFileName, os.O_APPEND|os.O_WRONLY, 0o644)
+	githubOutputFile, err := os.OpenFile(gitHubOutputFileName, os.O_APPEND|os.O_WRONLY, 0o644) //nolint:gosec
 	panic.IfError(err)
 	_, err = githubOutputFile.WriteString(labelCheckOutput)
 	if err != nil {