git: openjdk/jdk17: 8269148: Update minor GCC version in GitHub Actions pipeline

[Aleksey Shipilev]

Changeset: ce917b23
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-06-23 07:39:09 +0000
URL:       https://git.openjdk.java.net/jdk17/commit/ce917b23596415ab48f95f36c7d88adb1ec0df68

8269148: Update minor GCC version in GitHub Actions pipeline

Reviewed-by: erikj, dholmes, xliu

! .github/workflows/submit.yml