Fix vulns

.github/workflows/ci.yml

@@ -9,9 +9,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: Use Node.js v16.x
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v4
         with:
           node-version: 16
       - name: Notify slack
@@ -28,6 +28,7 @@ jobs:
       - name: Get yarn cache
         id: yarn-cache
         run: echo "::set-output name=dir::$(yarn cache dir)"
+        run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT
       - uses: actions/cache@v1
         with:
           path: ${{ steps.yarn-cache.outputs.dir }}

.nvmrc

@@ -1 +1 @@
-16.16.0
+20.11.0

action.yml

@@ -24,5 +24,5 @@ outputs:
   message_id:
     description: 'The unique timestamp identifier of the Slack message sent'
 runs:
-  using: 'node16'
+  using: 'node20'
   main: 'dist/index.js'