fix(PLT-816): update cache action to use v4

Author: tf-rob-w

.github/workflows/pull-request.yml

@@ -18,7 +18,7 @@ jobs:
           node-version: 20
 
       - name: Get yarn cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         id: yarn-cache
         with:
           path: |
@@ -58,7 +58,7 @@ jobs:
           node-version: 20
 
       - name: Get yarn cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         id: yarn-cache
         with:
           path: |

.github/workflows/release.yml

@@ -22,7 +22,7 @@ jobs:
           node-version: 20
 
       - name: Get yarn cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         id: yarn-cache
         with:
           path: |