Bump dependency zizmor to v1.20.0 (#1400)

| datasource      | package           | from    | to      |
| --------------- | ----------------- | ------- | ------- |
| github-releases | zizmorcore/zizmor | v1.19.0 | v1.20.0 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/lint.yml

@@ -20,7 +20,7 @@ env:
   PSSCRIPTANALYZER_VERSION: '1.24.0'
   TERM: xterm
   # renovate: datasource=github-releases depName=zizmor packageName=zizmorcore/zizmor
-  ZIZMOR_VERSION: '1.19.0'
+  ZIZMOR_VERSION: '1.20.0'
 
 jobs:
   lint: