Update GH actions

.github/workflows/build-and-tag.yml

@@ -1,4 +1,8 @@
 name: Build and Tag
+
+env:
+  NODE_VERSION: "20"
+
 on:
   push:
     branches:
@@ -22,10 +26,10 @@ jobs:
     - name: composer install
       run: composer install
 
-    - name: install node v20
+    - name: "install node v${{ env.NODE_VERSION }}"
       uses: actions/setup-node@v4
       with:
-        node-version: 20
+        node-version: ${{ env.NODE_VERSION }}
 
     - name: Build
       run: |

.github/workflows/build-docs.yml

@@ -1,5 +1,8 @@
 name: Build Docs
 
+env:
+  NODE_VERSION: "20"
+
 on:
   push:
     branches:
@@ -54,10 +57,10 @@ jobs:
         wp package install felipeelia/cli-command-docs:dev-trunk
         wp cli-command-docs elasticpress --custom-order=sync,activate-feature,deactivate-feature,list-features,get-algorithm-version,set-algorithm-version --remove=delete_transient_on_int,custom_get_transient,stop_on_failed_mapping,call_ep_cli_put_mapping,should_interrupt_sync,index_output,get-indexes,get-cluster-indexes,index,clear-index,get-indexing-status,get-last-cli-index,stop-indexing --custom-intro='The following WP-CLI commands are supported by ElasticPress:' > wp-content/plugins/elasticpress/docs/wp-cli.md
 
-    - name: Use Node.js 20
+    - name: "install node v${{ env.NODE_VERSION }}"
       uses: actions/setup-node@v4
       with:
-        node-version: '20'
+        node-version: ${{ env.NODE_VERSION }}
 
     - name: npm ci, and build docs
       run: |

.github/workflows/build-with-vendor-prefixed.yml

@@ -1,5 +1,8 @@
 name: Build with vendor-prefixed
 
+env:
+  NODE_VERSION: "20"
+
 on:
   pull_request:
     branches:
@@ -24,10 +27,10 @@ jobs:
     - name: composer install
       run: composer install
 
-    - name: install node v20
+    - name: "install node v${{ env.NODE_VERSION }}"
       uses: actions/setup-node@v4
       with:
-        node-version: 20
+        node-version: ${{ env.NODE_VERSION }}
 
     - name: Build
       run: |