chore(ci): upgrade node actions to node v20 (#8857)

Fixes Github Actions warning:

>  Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/setup-node@v3, actions/cache@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Author: alxndrsn

.github/actions/install-deps/action.yml

@@ -8,11 +8,11 @@ runs:
   using: composite
 
   steps:
-    - uses: actions/setup-node@v3
+    - uses: actions/setup-node@v4
       with:
         node-version: ${{ inputs.node-version }}
 
-    - uses: actions/cache@v3
+    - uses: actions/cache@v4
       with:
         path: ~/.npm
         key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/install-deps
         with:
           node-version: ${{ env.NODE_VERSION }}
@@ -31,7 +31,7 @@ jobs:
   shellcheck:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: sudo apt-get install shellcheck
       - run: git ls-files '*.sh' | xargs shellcheck
 
@@ -57,7 +57,7 @@ jobs:
       COUCH_HOST: http://admin:password@127.0.0.1:5984
       SKIP_MIGRATION: 1
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/install-deps
         with:
           node-version: ${{ matrix.node }}
@@ -97,7 +97,7 @@ jobs:
       COUCH_HOST: http://admin:password@127.0.0.1:5984
       SKIP_MIGRATION: 1
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/install-deps
         with:
           node-version: ${{ env.NODE_VERSION }}
@@ -134,7 +134,7 @@ jobs:
       CLIENT: node
       ADAPTERS: ${{ matrix.adapter }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/install-deps
         with:
           node-version: ${{ matrix.node }}
@@ -171,7 +171,7 @@ jobs:
       CLIENT: ${{ matrix.client }}
       ADAPTERS: ${{ matrix.adapter }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/install-deps
         with:
           node-version: ${{ env.NODE_VERSION }}
@@ -208,7 +208,7 @@ jobs:
       CLIENT: ${{ matrix.client }}
       SERVER: pouchdb-server
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/install-deps
         with:
           node-version: ${{ env.NODE_VERSION }}
@@ -244,7 +244,7 @@ jobs:
           - npm run verify-build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/install-deps
         with:
           node-version: ${{ matrix.node }}

.github/workflows/docs.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: ./.github/actions/install-deps
       - uses: ruby/setup-ruby@v1
         with: