Update manual-deploy.yml

Author: james-otten-pan

.github/workflows/manual-deploy.yml

@@ -10,7 +10,7 @@ jobs:
     needs:
       - create-github-release
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
       - name: Set up Python
         uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4
         with: