chore(deps): update node docker tag to v20 (#2385)

Author: renovate-bot

.github/workflows/peer-api.yaml

@@ -10,7 +10,7 @@ jobs:
   peer-api-check:
     runs-on: ubuntu-latest
     container:
-      image: node:18
+      image: node:20
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/release-please-validate.yaml

@@ -10,7 +10,7 @@ jobs:
   rp-validate:
     runs-on: ubuntu-latest
     container:
-      image: node:14
+      image: node:20
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/test-all-versions.pr.yml

@@ -12,7 +12,7 @@ jobs:
   parse-labels:
     runs-on: ubuntu-latest
     container:
-      image: node:16
+      image: node:20
     env:
       PR_LABELS: ${{ toJSON(github.event.pull_request.labels.*.name) }}
     outputs: