chore(deps): update actions/cache action to v6

Author: renovate[bot]

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
         uses: oven-sh/setup-bun@v2.1.2
 
       - name: Use cached node_modules
-        uses: actions/cache@v5.0.3
+        uses: actions/cache@v6.0.0
         with:
           path: node_modules
           key: node-modules-${{ hashFiles('**/bun.lockb') }}
@@ -47,7 +47,7 @@ jobs:
         uses: oven-sh/setup-bun@v2.1.2
 
       - name: Use cached node_modules
-        uses: actions/cache@v5.0.3
+        uses: actions/cache@v6.0.0
         with:
           path: node_modules
           key: node-modules-${{ hashFiles('**/bun.lockb') }}
@@ -70,7 +70,7 @@ jobs:
         uses: oven-sh/setup-bun@v2.1.2
 
       - name: Use cached node_modules
-        uses: actions/cache@v5.0.3
+        uses: actions/cache@v6.0.0
         with:
           path: node_modules
           key: node-modules-${{ hashFiles('**/bun.lockb') }}