build: Move the n8n and runners images onto n8nio/base:26.7.0 (#36990)

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

.github/workflows/build-node-pc-image.yml

@@ -25,7 +25,7 @@ on:
         type: boolean
 
 env:
-  NODE_VERSION: '26.5.1'
+  NODE_VERSION: '26.7.0'
 
 jobs:
   build:

.github/workflows/docker-build-push.yml

@@ -8,7 +8,7 @@ run-name: "${{ github.event_name == 'workflow_dispatch' && format('Docker: Build
 
 env:
   NODE_OPTIONS: '--max-old-space-size=7168'
-  NODE_VERSION: '26.5.1'
+  NODE_VERSION: '26.7.0'
 
 on:
   schedule:

.github/workflows/docker-build-smoke.yml

@@ -12,7 +12,7 @@ env:
   # The images copy native bindings from the host build, so both have to use the same
   # Node. dockerize-n8n.mjs reads this env for the image builds. Keep in sync with
   # NODE_VERSION in docker-build-push.yml, which is what the published images use.
-  NODE_VERSION: '26.5.1'
+  NODE_VERSION: '26.7.0'
 
 on:
   schedule: