git: openjdk/jdk11u-dev: 8290000: Bump macOS GitHub actions to macOS 11

[Christoph Langer]

Changeset: ac89673b
Author:    George Adams <georgeadams1995 at gmail.com>
Committer: Christoph Langer <clanger at openjdk.org>
Date:      2022-08-03 09:30:35 +0000
URL:       https://git.openjdk.org/jdk11u-dev/commit/ac89673b07a30b10931cc39c4367047b741d1f04

8290000: Bump macOS GitHub actions to macOS 11

Reviewed-by: clanger
Backport-of: 4e6cd67fec3d978f4c8c1aed95a1d09b544eff68

! .github/workflows/submit.yml