chore: bump Go to 1.21.8 (#83927)
* chore: bump Go to 1.21.8
Signed-off-by: Dave Henderson <dave.henderson@grafana.com>
* bump workflows too
Signed-off-by: Dave Henderson <dave.henderson@grafana.com>
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Signed-off-by: Dave Henderson <dave.henderson@grafana.com>
(cherry picked from commit 01fb2cff62)