chore(deps): update grafana/k6 digest to 99d25c3

Signed-off-by: renovate-sh-app[bot] <219655108+renovate-sh-app[bot]@users.noreply.github.com>

Author: renovate-sh-app[bot]

.github/workflows/issue-auto-assign.yml

@@ -8,4 +8,4 @@ permissions:
 
 jobs:
   assign-maintainer:
-    uses: grafana/k6/.github/workflows/issue-auto-assign.yml@fb30dcff4bc2c2fdbc3f624d4a76a519542404e0 # master
+    uses: grafana/k6/.github/workflows/issue-auto-assign.yml@99d25c36859b402452b1be58da2d2d63c55ba69c # master