chore(deps): update actions/setup-node action to v6.4.0

Author: renovate[bot]

.github/workflows/_reusable_cdk_synth.yml

@@ -11,7 +11,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "24.15.0"
           cache: npm

.github/workflows/_reusable_check.yml

@@ -11,7 +11,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "24.15.0"
           cache: npm

.github/workflows/_reusable_deploy.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "24.15.0"
           cache: npm

.github/workflows/_reusable_lambda_rie_test.yml

@@ -11,7 +11,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "24.15.0"
           cache: npm