Pin down action to full-length commit SHA

Signed-off-by: Keshav Priyadarshi <git@keshav.space>

Author: keshav-space

.github/workflows/a-b-deploy.yml

@@ -33,7 +33,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Set deploy target
         id: set-target
@@ -45,7 +45,7 @@ jobs:
           fi
 
       - name: Setup Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f #v6.3.0
         with:
           node-version: 20
           cache: npm
@@ -64,7 +64,7 @@ jobs:
           npm run build
 
       - name: Upload build artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f  # v7.0.0
         with:
           name: docusaurus-build
           path: website/build
@@ -83,18 +83,18 @@ jobs:
 
     steps:
       - name: Download build artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@70fc10c6e5e1ce46ad2ea6f2b72d43f7d47b13c3  # v8.0.0
         with:
           name: docusaurus-build
           path: build
 
       - name: Upload Pages artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@7b1f4a764d45c48632c6b24a0339c27f5614fb0b #v4.0.0
         with:
           path: build
 
       - name: Deploy to GitHub Pages
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e #v4.0.5
 
 
   deploy-dreamhost:
@@ -107,7 +107,7 @@ jobs:
 
     steps:
       - name: Download build artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@70fc10c6e5e1ce46ad2ea6f2b72d43f7d47b13c3  # v8.0.0
         with:
           name: docusaurus-build
           path: build