Update preview.yml

Author: Serjlee

.github/workflows/preview.yml

@@ -69,18 +69,18 @@ jobs:
         id: gatsby-cache-folder
         with:
           path: .cache
-          key: ${{ runner.os }}-cache-gatsby-${{ github.sha }}
+          key: ${{ runner.os }}-cache-gatsby-${{ github.ref }}
           restore-keys: |
-            ${{ runner.os }}-cache-gatsby-
+            ${{ runner.os }}-cache-gatsby-main
 
       - name: Gatsby Public Folder
         uses: actions/cache@v4
         id: gatsby-public-folder
         with:
           path: public/
-          key: ${{ runner.os }}-public-gatsby-${{ github.sha }}
+          key: ${{ runner.os }}-public-gatsby-${{ github.ref }}
           restore-keys: |
-            ${{ runner.os }}-public-gatsby-
+            ${{ runner.os }}-public-gatsby-main
 
       - run: npm install
       - run: npm run build
@@ -135,4 +135,4 @@ jobs:
           body: |
             ## Preview Deployment
             🚀 Preview this PR: ${{ steps.url_preview.outputs.NETLIFY_PREVIEW_URL }}
-            📍 Commit SHA: ${{ github.sha }}
+            📍 Commit SHA: ${{ github.sha }}