chore(deps): update grafana/shared-workflows/create-github-app-token action to v0.3.1 (#185)

| datasource  | package                  | from                           | to                             |
| ----------- | ------------------------ | ------------------------------ | ------------------------------ |
| github-tags | grafana/shared-workflows | create-github-app-token/v0.2.2 | create-github-app-token/v0.3.1 |

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

Author: renovate-sh-app[bot]

.github/workflows/periodic-zizmor.yaml

@@ -42,7 +42,7 @@ jobs:
 
       - name: Get GitHub App token
         id: get-github-app-token
-        uses: grafana/shared-workflows/actions/create-github-app-token@ae92934a14a48b94494dbc06d74a81d47fe08a40 # create-github-app-token/v0.2.2
+        uses: grafana/shared-workflows/actions/create-github-app-token@46f48da11e78ebdba7a8747ae456b11062fac83e # create-github-app-token/v0.3.1
         with:
           github_app: grafana-zizmor-bot