Bump seanmiddleditch/gha-setup-ninja from 5 to 6 (#196)

Author: dependabot[bot]

.github/workflows/wsl.yml

@@ -34,7 +34,7 @@ jobs:
     steps:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
-    - uses: seanmiddleditch/gha-setup-ninja@96bed6edff20d1dd61ecff9b75cc519d516e6401 # v5
+    - uses: seanmiddleditch/gha-setup-ninja@3b1f8f94a2f8254bd26914c4ab9474d4f0015f67 # v6
 
     - name: Get vcpkg commit hash
       shell: pwsh